L 1. Abbot, Francis Ellington. One letter to CSP, January 5, 1894.

L 2. Adams, Brooks. Two letters to CSP, January 3, 1892 and January 12, 1896.

L 3.Adams, Charles K. One letter (TS.) to CSP, January 12, 1892.

L 4. Adams, George B. Two letter drafts from CSP, May 17, 1901.

L 5. Agassiz, Alexander. One letter to CSP, July 5, 1903.

L 6. Agassiz Elisabeth C. Four letters to CSP December 16. 1891. December 8, [1892], January 27, n. yr., and December 30, n. yr.

L 7. Agassiz, Louis. An invitation to CSP to attend a reunion of Agassiz's pupils on the one hundredth anniversary of Agassiz's birth, May 1907.

L 8. Aikens, H. Austin. One letter (with an enclosed letter to the editor of The Nation) to CSP, September 27, 1902; one letter draft from, n.d.

L 9. Alden, John B. One letter from CSP, August 25, 1890.

L 10. Allen, Col. Vanderbilt. One letter draft from CSP, n.d.

L 11. Alline, L. M. One letter to CSP, February 2, 1893.

L 12. American Academy of Arts and Sciences (John Trowbridge, President). One letter to CSP, n.d.

L 13. American Association for the Advancement of Science. One letter to CSP, n.d. Notice of CSP's election; August 1881.

L 14. The American Historical Review (Albert Bushnell Hart and J. Franklin Jameson). Nine letters to CSP, April 30, 1896-December 10, 1897; five letter drafts from, March 13 and May 17, 1901.

L 15. American Mathematical Society (Thomas S. Fiske, Secretary). One letter to CSP, October 23, 1894.

L 16. American Metrological Society (J. K. Rees, Secretary). One letter to CSP, January 20, 1885.

L 17. American Society for Psychical Research (Richard Hodgson, Secretary). One letter to CSP, October 3, 1898. One letter (T. H. Pierson, Secretary) to James H. Woods, June 3, 1931.

L 18. The American Society for the Extension of University Teaching (Willis Boughton). One letter to CSP, July 29, 1891. Notice of election, 1891.

L 19. Anthony, Andrew V. S. (Sun and Shade, Art Department). Three letters to CSP, December 11-19, 1891.

L 20. Anthony, R. A. (McVickar, Gaillard Realty Co.). One letter to CSP, December 20, 1905.

L 21. Appleton, D. and Co. (William W. Appleton, William Hirsch, Ripley Hitchcock, E. Werrey, W. J. Youmans). Twenty-six letters to CSP and Juliette Peirce, May 18, [1894?] - March 9, 1900; three letter drafts from CSP, June 29, 1896 and n.d.; two letter drafts from Juliette Peirce, February 12, 1896 and n.d.

L 22. Arisbe (The Peirce estate near Milford, Pa.). Boarding house correspondence and advertisements. Seventy-eight letters, cards, and telegrams, April 24, 1894 - May 9, 1902. Placed with the Arisbe correspondence is a small notebook, with a survey in CSP's hand, January 22, 1898.

L 23. Arisbe. Letters, drafts of letters, proposals for the sale of the property, including correspondence involving Juliette Peirce after CSP's death. Correspondence begins April 2, 1894 and concludes with a letter from the New York Herald Tribune of April 4, 1933.

L 24. Arisbe. Deed, leases, and other legal business. The deed: Eleanor and Maria Quick to Juliette Peirce, May 10, 1888.

L 25. Arnold, Constable, and Co. One letter draft from CSP, June 1911.

L 26. Arnot, Raymond H. One letter to CSP, November 2, 1901.

L 27. Astor, John Jacob. One letter (Astor's secretary) to CSP, November 28, 1896.

L 28. Astor Library. Two letters to CSP, June 4, 1890 and December 6, 1895.

L 29. Atlantic Monthly (the editors). One letter to CSP, June 29, 1901.

L 30. d'Aulby, John Edward. Thirty-three letters to CSP, May 7, 1895-December 19, 1896. One letter (Francesca d'Aulby) to CSP, n.d.; incomplete letter draft from, n.d. Also: a telegram, notice of telegram, and letters to CSP from Howard Russell Butler, Adeline Lunt, William Macbeth, and E. A. Stedman, together with a copy of a release, with surrender of power of attorney, and a small notebook (CSP's), containing d'Aulby genealogy.

L 31. Ausfeld, H. Two letters to CSP, December 23, 1872 and January 23, 1873.

L 32. Austin, Ben W. (Secretary, Trinity Historical Society, Dallas, Texas). One letter to CSP, July 26, 1891.

L 33. Baker, Harry T. One letter to CSP, January 20, 1897; eleven letters from CSP and Juliette Peirce, August 29, 1888-January 22, 1901.

L 34. Baldwin, J. M. (Dictionary of Philosophy and Psychology). Twenty-two letters to CSP, October 9, 1900-November 8, 1902, and n.d.: nine letter drafts (one of which is not in CSP's hand) from, October 20, 1900-December 7, 1903, and n.d.

L 35. Barnard, Augusta (Mrs. James Munson B.). Four letters to CSP and Juliette Peirce, October 22, 1896-January 12, 1900; one letter draft from CSP, n.d.

L 36. Barnet, Samuel. Fragments of letter drafts from CSP, two of which are dated, December 8, 1909 and February 16, 1910.

L 37. Barney, William. one letter to CSP, March 19, 1899.

L 38. Bartlett, John. One letter to CSP, November 23, 1894,

L 39. Becker, George Ferdinand. Twenty-two letters to CSP, November 28, 1891-March 28, 1897 and n.d.; two letter drafts from, February 22, 1897 and July 10, 1910. Also a two-page TS.; a communication to the American Journal of Science, Third Series, 1878, on "A Contribution to the History of Spectrum Analysis" by G. F. Becker.

L 40. Beekman, Charles K. Eleven letters to CSP and Juliette Peirce, June 20, 1898-December 7, 1900.

L 41. Bell, Alexander Graham. One letter (by Bell's secretary) to CSP, November 22, 1906; one letter draft from, March 25, 1906.

L 42. Benjamin, Park. One letter to CSP, December 6, 1895. See N-1896-1.

L 43. Benton, J. G. One letter to CSP, May 23, 1871.

L 44. Bidlack, W. W. One letter to CSP, October 12, 1888.

L 45. Bierstadt, Albert. Eleven letters to CSP, March 5, 1896-April 7, 1898. One letter (Bierstadt) to Count d'Aulby, June 21, 1896. Also CSP's receipt for an unfinished picture, May 5, 1896.

L 46. Bigler, Warren. One letter to CSP, June 28, 1911.

L 47. Billings, John Shaw. Three letters to CSP, October 22, 1900 November 5, 1910.

L 48. Billings and Stover (Pharmacy). One letter to CSP, July 31, 1904.

L 49. Blake, Francis. Five letters to CSP, May 4, 1896-February 2, 1897; two letter drafts from, April 27, 1896 and [November 2, 1896?].

L 50. Bolton, H. Carrington. One letter to CSP, March 9, 1894.

L 51. The Bookman. Three letters to CSP, April 18-June 23, 1900.

L 52. Boutelle, C. O. One letter to CSP, August 12, 1872.

L 53. Boston Public Library (Issue Department). One letter to CSP, September 22, 1904.

L 54. Bowen, Francis P. One letter to CSP, December 23, 1867.

L 55. Bradford, Gamaliel. One letter draft from CSP, April 16, 1904.

L 56. Bradford, J. S. and Bradford, Rosalie M. Five letters to CSP, August 4, 1872-February 11, 1873.

L 57. Brady's National Photographic Galleries. One letter to CSP, July 5, 1872.

L 58. Brennan, Alfred. Eight letters to CSP, May 8, 1890 - March 24, 1904; one letter draft from, n.d.

L 59. Brentano's (Publishers). Two letters to CSP, January 13, 1896 and June
26, 1902.

L 60. Brown, Homer J. One letter to CSP, April 17,1893.

L 61. Brownell, Eleanor Olivia (Secretary, Bryn Mawr College Philosophical
Club). One letter to CSP, November 29, 1896.

L 62. Bryce, Lloyd. One letter to CSP, March 25, 1890.

L 62a. Bucherer, Alfred H. One letter to CSP, March 22, 1893.

L 63. Bull, C. W. Two letters, a card, and a telegram to CSP, August 8, 1895-July 18, 1900; one letter draft from, n.d.

L 64. Butler, George Bernard. One letter to CSP, December 8, n. yr.

L 65. Butler, Nicholas Murray. Two letters to CSP, February 15, 1892 and December 22, 1897; one letter draft (first sentence only) from, n.d.

L 66. Byerly, William E. Two letter drafts from CSP, November 17 and December 9, 1908. One letter (Byerly) to Benjamin P. Ellis, December 5, 1908.

L 67. Calderoni, Mario. One letter draft from CSP, [1905]. This is a draft of
39 pp., of which pp.1-17 were published as 8.205-213.

L 68. Calvi, Mr. One letter draft to CSP, April 12, 1896.

L 69. Cambridge University Press. Two letters to CSP, February 17, 1911 and February 7, 1912. Memo, December 19, 1889.

L 70. Campbell, Douglas. Five letters to CSP, May 4, 1887-October 6, 1892. ; Also a formal wedding invitation.

L 71. Campbell, [Harriet Mumford]. One letter to CSP, May 7, 1893.

L 72. Campbell, William Wallace. One letter draft from CSP, [1908].

L 73. Cantor, Georg. Five letter drafts from CSP, December 21-23, 1900, and n.d.

L 74. Cantor, Moritz. One letter draft from CSP, November 12, 1892.

L 75. Carnegie Institution Correspondence. The principal letter of this correspondence is CSP's application for financial assistance. It is addressed to the Executive Committee of the Carnegie Institution and is dated July 15, 1902. The application, which is 76 pp. long, was published, in part, as 7.158-161 and 8.176n3 (G-1902-6). Parts of earlier drafts run as high as p. 83 and are not dated. One letter (CSP) to Ernst Schroeder contains an enclosed list of CSP's proposed memoirs and is dated, July 23, 1902. One letter draft (CSP) to Dr. Weir Mitchell, n.d. Also fifty-three letters, May 3, 1901 - November 21, 1900. The correspondents include CSP's brothers, H. H. D. and J. M. Peirce, and the following in alphabetical order: Marcus Baker, Richard, Cabot, J. M. Cattell, J. E. Creighton, John Dewey, George S. Fullerton, B. I. Gilman, G. Stanley Hall, O. W. Holmes, Mary Putnam Jacobi, William James, H. C. Lodge, Percival Lowell, Wayne MacVeagh, Henry Rutgers Marshall, Allan Maynard, Dickinson S. Miller, William Pepperell Montague, E. H. Moore, Edward Pickering, G. A. Plimpton, Theodore Roosevelt, Elihu Root Josiah Royce, Wilman Henry Sheldon, Benjamin E. Smith, Albert Stickney, William E. Story, John Trowbridge, Charles Walcott, Joseph B. Warner. Some of the letters contain CSP's comments.

L 76. Carty, Thomas J. One letter to CSP, January 6, 1901.

L 77. Carus, Paul (Open Court Publishing Co.). One hundred and twelve letters (Carus, E. C. Hegeler, T. J. McCornlack, Lydia Robinson, M. A. Sachsteder, F. Sigrist) to CSP, July 2, 1890 - September 10, 1913; twenty-five letter drafts from, July 5, 1892 - June 13, 1911, and n.d.

L 78. Cattell, J. McKeen (G. P. Putnam's Sons). Fifty-seven letters to CSP, January 6, 1898-December 7, 1911; three letter drafts from, March 31, 1898-December 18, 1903.

L 79. Century Club. One letter to CSP, August 18, 1891.

L 80. Century Company (Century Dictionary). Forty-seven letters to CSP and Juliette Peirce, April 12, 1890-May 18, 1932; nine letter drafts from CSP, April 10, 1901 June 20, 1909, and n.d. One letter (J. R. Buchanan) to the editor of the Century Dictionary, June 24, n. yr.

L 81. Chamberlin, T. C. Two letters to CSP, July 7 and September 18, 1897.

L 82. Chandler, William Henry. Two letters to CSP, January 22 and April 25, 1901.

L 82a. Chase, Pliny Earle. One letter draft from CSP, April 4, 1864.

L 83. Child, Francis J. Two letters to CSP, February 28, 1888 and April 12, 1894.

L 84. Christern, J. W. One letter to CSP, July 28, n. yr.; one letter draft from, December 3, 1900.

L 85. Civil Service Commission Correspondence (re: Application for position of Inspector of Standards, Office of Standard Weights and Measures, U.S. Coast and Geodetic Survey). Two letters from CSP, May 18 and August 12, 1899. One letter draft from CSP to John R. Procter, June 19, 1899. Two letter drafts from CSP to Cabot Lodge, November 3, 1899. Letter draft (?) of 4 pp., stating qualifications for position of Inspector of Standards, n.d. Included in the correspondence are two announcements by the United States Civil Service Commission of a new position of Inspector of Standards, mentioning the examination subjects and weights assigned to each, June 1 and July 15, 1899. Application for the examination, filled in and dated, June 1, 1889. Report of the examination averages (CSP's general average was 96.00, with 90.00 on the thesis), December 7, 1899. Draft of "Thesis on the proper functions of a National Office of Weights and Measures," with 4 pp. of earlier attempts. The following letters were sent to CSP: two letters (Ernest J. Sommer), May 14, and 19, 1899; one letter (Asaph Hall), July 1, 1899; one letter (Seth C. Chandler), July 3, 1899; two letters (John R. Procter), July 11 and 20, 1899; one letter (Simon Newcomb), July 20, 1899; one letter (Henry Cabot Lodge), November 9, 1899. The following letters have also been included in the correspondence: one letter (Henry S. Pritchett) to Henry Cabot Lodge, September 14, 1899; one letter (George A. Plimpton) to Henry S. Pritchett, October 26, 1899; one letter (George A. Plimpton) to Lyman S. Gage (Secretary of the Treasury), October 26, 1899; one letter (C. Lyman) to George A. Plimpton, November 11, 1899; one letter (George A. Plimpton) to William McKinley, President of the United States, November 14, 1899; one letter (J. A. Porter, McKinley's Secretary) to George A. Plimpton, November 15, 1899; one letter (Henry S. Pritchett) to James Mills Peirce, November 15, 1899.

L 86. Clark, Alvan. Three letters to CSP, April 17 - May 18, [1872].

L 87. Clifford, H. E. One letter to CSP, April 17, 1900; one letter draft from, n.d.

L 88. Clinton, Mr. Two letter drafts from CSP, n.d. Verso of one has draft of letter to Dr. Sommer, n.d.

L 89. Clothilde (Jeanne d'Arc Home). Forty-eight letters, thirteen postal cards, and one telegram to CSP and Juliette Peirce, September 1899 - August 9, 1926; one letter draft from CSP, [1901?] and one letter draft from Juliette Peirce, February 12, 1923. Miscellaneous items: clippings, prayers, and two "Fair Books."

L 90. Coan, Titus Munson. Two letters to CSP, September 23, 1887 and January 13, 1894; one letter draft from, n.d.

L 91. Goast Survey Correspondence. Two letters (E. Mayo) to CSP, July 17, 1880 and March 23, 1882. Two letters (J. E. Hilgard) to CSP, April 17, 1882 and February 1, 1883. One letter (H. J. Chaney) to CSP, June 22, 1883. One letter (W. R. O'Neill) to CSP, February 2, 1886. Six letters (F. M. Thorn) to CSP, March 30, 1886-August 15, 1888. One letter (E. D. Preston) to CSP, May 9, 1889. Seven letters (T. C. Mendenhall) to CSP, July 17, 1889-December 24, 1891; two letter drafts from, January 20, 1892 and January 1892. One letter (W. Butler) to CSP, January 18, 1892. One letter draft from CSP to C. P. Patterson, December 29, 1878. Two letter drafts from CSP to Edwin Smith, May 25, 1882 and n.d. One letter draft from CSP to S^hmer, April 12, 1885. One letter draft from CSP to John W. Parsons, September 5, 1891. One letter draft from CSP to Henry Farguhar, n.d. Three letter drafts from CSP to an unidentified person or persons, n.d. Other correspondence includes: One letter (Julius Bein) to J. E. Hilgard, February 21, 1873. One letter (G. W. Frodsham] to J. E. Hilgard, October 16, 1873. One letter (J. M. Portin) to James Mills Peirce, November 4, 1880. One letter (C. A. Schott) to B. A. Colonne, August 13, 1885. One letter (A. Riesenberger) to F. M. Thorn, June 6, 1887. One letter (R. Faris, Acting Director) to Paul Weiss, August 10, 1931. Also: tables, instructions, vouchers, orders, circulars.

L 92. Collins, Charles. One letter to CSP, May 16, 1890.

L 93. Conger, A. B. One letter to CSP, December 27, 1872.

L 94. Cooke, Jay, and Company. Two letters to CSP, June 20, 1872 and February 25, 1873.

L 95. Cooke, Josiah P. One letter to CSP, January 17, 1894.

L 96. Cooper, Theodore. One letter to CSP, June 13, 1895.

L 97. Cooper, W. G. One letter (Cooper) to "Professor" [Benjamin Peirce?]; [August 7, 1869]. A copy in CSP's hand.

L 98. Cooper, W. W. One letter to CSP, December 16, 1872.

L 99. Corral, F. J. del. One letter to CSP, November 18, 1889.

L 100. Correspondence Court ("Art of Reasoning '). Sixty-six letters (students) to CSP, 1887-90; one letter (TS.) from CSP to "My dear pupil," n.d. A notebook with drafts of letters to CSP's students. Another notebook containing a list of students and an elementary explanation of Boolean algebra. Two drafts of "Boolian Algebra. First Lesson." In addition, there are handwritten and typewritten sections of the course, circulars, and an early draft of the circular.

L 101. Cosmopolitan Magazine (Editorial Department). Two letters to CSP, December 10, 1897 and June 12, 1900.

L 102. Couturat, Louis. Note or letter draft (incomplete?) from CSP, n.d.

L 103. Craig, Thomas. One letter to CSP, May 1, 1896.

L 104. Crofts, J. M. One letter to CSP, [c.1896]; one letter draft from, [c.1896].

L 105. Cummings, Prentiss. Cummings' personal card, with note; n.d.

L 106. Cupples and Schoenhof. One letter draft from CSP, December 17, 1903.

L 107. Curtis, Matthew Mattoon. One letter to CSP, October 26, 1904. In his letter Curtis notes that he is about to rewrite the sketch of philosophy in North America for a new edition of Ueberweg-Heinze, Geschichte der Philosophie and requests information concerning CSP's logical and philosophical views. In response to this request CSP drafted a philosophical autobiography, pp. 1-25, with variants. This incomplete draft has been placed with the Curtis correspondence.

L 108. Dana, Charles Anderson. Seven letters to CSP, July 8, [1872]-May 10, 1892.

L 109. Daniel, A. T. One letter to CSP, September 26, [1894?].

L 110. Daniells, Miss. One letter draft from CSP, September 12, 1891.

L 111. Davidson, George. One letter to CSP, December 27, 1872.

L 112. Davis, Charles Henry. One letter to CSP, July 1, 1872.

L 113. Davis, Charles Henry. Ten letters to CSP, March 12, 1894-February 8, 1900, and n.d.

L 114. Davis, Ellery W. One letter draft from CSP, April 9, 1898.

L 115. Davis, F. du Pont. One letter to CSP, November 2, 1872.

L 116. Davis, Louisa. One letter to CSP, n.d.

L 117. Dean, George W. Two letters to CSP, February 15 and 20, 1873.

L 118. Dembitz, Lewis N. One letter to CSP, November 19, 1893.

L 119. De Morgan, Augustus. One letter to CSP, April 14, 1868.

L 120. Denver University (F. D. Burhaus). One letter to CSP, February 26, 1894.

L 121. De Vinne and Co., Printers. Four letters to CSP, May 5-November 11, 1893; one letter draft from, October 30, 1893.

L 122. Devoe, F. W., and Company (J. Wyman Drummond). One letter to CSP, August 13, 1889.

L 123. Dewey, John. Three letters to CSP, December 23, 1903, January 11, 1904, and April 11, 1905; Three letter drafts from, December 8, 1903 June 9, 1904, and n.d. One letter (Dewey) to Paul Weiss; October 1, 1931. See also Carnegie Institution correspondence.

L 124. Dick, Joseph. One letter draft from CSP, January 6, 1900. Two letter (Dick) to the ditor of The Nation, October 1, 1898 and January 2, 1900.

L 125. Easton, Nelson S. Seven letters to CSP, June 6, 1896-October 4, 1898 five letter drafts from, n.d. One letter (Easton) to Count d'Aulby July 8, 1896.

L 126. Edmunds, James R. One letter draft from CSP; February 14, 1896.

L 127. Eliot, Charles W. Three letters to CSP, May 23, 1872-October 4, 1895 one letter draft from, November 27, 1872.

L 128. Elliott, E. J. One letter to CSP, October 17, 1908.

L 129. Ellis, Helen P. Thirty-two letters to CSP, many of uncertain date twelve letters and one postal card from, January 22, 1871 - 1913. In addition to the letters there is a clipping on "Our Dream-Life" which CSP's sister sent him for his comments.

L 130. Ellis, Sally Mills (Mrs. Richard Cobb). One letter to CSP, March 12 1901.

L 131. Ellis, William R. One letter to CSP, August 2, 1872. A clipping from the New York Sun, February 26 [1895?], concerning the sale of CSP' library.

L 132. Emery, Woodward. Two letter drafts from CSP, March 11 and 15, 1908.

L 133. Engle, J. S. Two letters to CSP, February 24 and 25, 1905; one letter draft from, February 14, 1905.

L 134. Errata. Printed letter by CSP, concerning the memoir, "On the Algebra of Logic" (G-1880-8), September 15, 1880.

L 135. Esberg, L. One letter to CSP, July 8, 1872.

L 136. Everett, William. Two letters to CSP, September 20, 1893 and February 20, 1894.

L 137. Fahie, John Joseph. One letter draft from CSP, March 18, 1904.

L 138. Farguhar, Henry. One postal card to CSP, March 22, [1879?].

L 139. Fay, Charles. One letter to CSP, October 4, 1873.

L 140. Fay, C. Norman. One letter to CSP and Zina (Harriet Melusina Fay; January 23, 1876.

L 141. Fay, James H. One letter to CSP, April 25, 1890.

L 142. Ferrero, Annibale. One letter to CSP, November 25, 1889.

L 143. Fifth Avenue Bank. Two letters to CSP, August 23 and October 1, 1904 three letter drafts from, July 30, 1892-July, 1901. One letter, Fifth Avenue Bank to Juliette Peirce, March 31, 1921.

L 144. Findlay, Mr. One letter draft from CSP, July 3, 1905.

L 145. Fine, Henry Burchard. Five letters to CSP, December 16, 1900-January 28, 1901; one letter draft from, July 17 1903.

L 146. Fiske, John. Four letters to CSP, October 12, 1891-February 6, 1894. One letter (Houghton, Mifflin and Co.) to Fiske, January 27, 1894.

L 147. Forkas (Stein-Gray Drug Co.) One letter to CSP, April 5, 1904.

L 148. Frankland, F. W. Ten letters to CSP, March 12, 1897- October 25, 1905, and n.d.; three letter drafts from, May 8, 1906, February 25, 1907, and n.d. One letter (Frankland) to Dr. Skinner, March 9, 1897.

L 149. Franklin, Fabian. Two letters to CSP, November 20, 1900 and July 10, 1901.

L 150. Fransch, Hans A. One letter draft from CSP, April 14, 1911.

L 151. Frazer, Persifor. Two letters to CSP, November 16, 1901 and July 2, 1902; one letter draft from, April 28, 1901.

L 152. Fuertes, E. A. Two letters to CSP, December 30, 1891 and May 13, 1897. One letter (Fuertes) to Juliette Peirce, 1885.

L 153. Funk and Wagnalls (Isaac K. Funk). Eleven letters to CSP, May 11, 1891-September 1, 1896; one letter draft from, July 12, 1892.

L 154. Gaillard, Alberic. Five letters to CSP, September 22, 1891-March 29, 1897.

L 155. Gallup, George H. One letter to CSP, October 28, 1911.

L 156. Gannett, Dr. One letter draft from CSP, n.d.

L 157. Gardam, Joseph. One letter to CSP and Juliette Peirce, June 19, 1911.

L 158. Gardiner, A. S. One letter to CSP, March 18, 1890.

L 159. Garrison, Wendell Phillips (The Nation, Evening Post). Two hundred and sixteen letters to CSP, with an occasional letter to Juliette Peirce, January 10, 1872-May 6, 1907; twenty-three letter drafts from, February 18, 1899-[c.1907-08], and n.d. Also: some correspondence between authors of books CSP reviewed and the editor of The Nation.

L 160. Gautier, P. Two letters to CSP, August 22, 1884 and n.d.

L 161. Gest, John M. One letter to CSP, November 27, 1901.

L 162. Gibbs, J. Willard. One letter to CSP, December 1, 1881.

L 163. Gibbs, Wolcott. Two letters to CSP, June 28, 1872 and March 14, 188-.

L 164. Giddings, Franklin H. One letter draft (possibly two) from CSP, June 11, 1910. One letter (Giddings) to W. P. Garrison, April 5, 1902.

L 165. Gill, Edith Gwynne and William Fearing. Ninety-one letters to CSP and Juliette Peirce, October 7, 1891-March 20, 1909, and n.d.; a note and the beginning of a letter from CSP, n.d. Two letter drafts (Juliette Peirce) to Gill, n.d.

L 166. Gill, J. Thompson. Four letters to CSP, October 23, 1900 - February 11, 1901, and n.d.

L 167. Gillnan, Benjamin Ives. Five letters to CSP, May 18, 1882-April 12, 1905, and October 28, n. yr.

L 168. Gilman, Daniel C. Three letters to CSP, April 27, 1887-February 6, 1897; one letter (copy) from, January 13, 1878, and two letter drafts from, April 18, 1895 and May 21, 1896. One letter (Mrs. D. C. Gilman) to Juliette Peirce, July 13, 1883.

L 169. Ginn and Company (G. A. Plimpton). Forty-eight letters to CSP, October 31, 1893 - August 18, 1903; seven letter drafts from, May 25, 1894 November 18, 1899, and n.d. Six letters (Plimpton) to Juliette Peirce, March 14, 1895-November 9, 1898. One letter (Philbin and Beekman) to Plimpton, November 7, 1898.

L 170. Girard Trust Company. One letter draft from CSP, September 15, 1911.

L 171. Goddard, Charles H. One letter to CSP, November 24, 1903.

L 172. Goodwin, Wm. W. Two letter drafts from CSP, January 4, 1901 and September 14, 1908.

L 173. Grace, J. W. One letter to CSP, April 14, 1887.

L 174. Greely, Adolphus W. Three letters to CSP, November 30, 1888-November 10, 1902; one letter draft from, November 27, 1888; one letter (Robert Craig) to CSP, December 4, 1888.

L 175. Greenslet, Ferris. One letter draft from CSP, December 19, 1905.

L 176. Guthrie, Edwin. Two letters to CSP, June 5 and 20, 1911.

L 177. Haines, J. Harvey. Two letters to CSP, November 16 and 23, 1903.

L 178. Hall, A. One letter to CSP, May 8, 1872.

L 179. Hall, G. Stanley. Thirteen letters, one of which is from Hall's secretary, to CSP, March 17, 1890 - January 29, 1901.

L 180. Halsey, Frederick A. One letter to CSP, September 27, 1904; four letter drafts from, November 10, 1904-January 15, 1905, and n.d.

L 181. Halsted, George Bruce. Four letters to CSP, December 7, 1891-December 17, 1895; one letter draft from, n.d.

L 182. Harriman, Sarah F. Two letters to CSP and Juliette Peirce, March 8, 1896 and March 22, 1897; one letter draft from CSP, n.d.

L 183. Harris, William Torrey. Sixteen letters (typed from the originals) to CSP, January 1, 1868-November 29, 1869; one letter to, December 10, 1867; one letter draft from, [c.1870]. Typed copies of letters to Harris from Amos Bronson Alcott and D. C. Gilman. Two letters from Edith Davidson Harris to Max Fisch.

L 184. Harrison, A. M. One letter to CSP, October 16, 1872.

L 185. Harvard College (Class of 1859). Five letters (Class committees and class secretary), to CSP, May 15-December 11, 1872, and [1872].

L 186. Harvard College Library. A request that books borrowed from the library (for the Harvard Lectures on pragmatism (1903) and the Lowell Lectures in November and December of 1903] be returned. An accompanying list of books and the dates on which the books were borrowed.

L 187. Harvard Cooperative Society. One letter draft from CSP, January 1, 1909.

L 188. Hastings, Mr. One letter draft from CSP, February 27, 1901.

L 189. Hathaway, Philip. One letter from CSP, November 7, 1903.

L 190. Hawley, Thomas D. One letter to CSP, November 18, 1896. A card from CSP, n.d.

L 191. Hawthorne, Julian. One letter to CSP, February 10, 1909.

L 192. Heath, D. C. and Company. Two letters to CSP, October 17 and November 11, 1898.

L 193. Hein, Samuel. Three letters to CSP, November 15, 1872-February 21, 1873.

L 194. Herringshaw's Encyclopedia of American Biography. An advertisement, with note added that CSP is to be represented in the 2nd edition to be published in the fall of 1900.

L 195. Herschel, J. Three letters to CSP, December 29, 1884, February 11, 1886, and n.d.

L 196. Hewitt, Edward R. One letter to CSP, December 28, 1892.

L 197. Hilgard, Julius E. Four letters to CSP, June 21, 1872 January 29, 1873; three letter drafts from, February 2, 1872-March 26, 1883.

L 198. Hillebrand, W. F. One letter to CSP, September 30, 1899.

L 199. Hincourt (d'), Pierre Fourier. Personal card only.

L 200. Holden Edward S. and Mary C. Twenty-seven letters and one postal card to CSP and Juliette Peirce, January 1, 1886-October 24, 1901; five letter drafts from CSP, January 5, 1900 - July 30, 1906, and n.d. One letter (Holden) to James Mills Peirce, February 15, 1897.

L 201. Holden (Real Estate). One letter draft from CSP, n.d.

L 202. Holmes, O. W. Jr. One letter to CSP, April 20, 1908. One letter (Holmes) to Charles Hartshorne, August 25, 1927. One letter (Donald Hiss, Holmes' secretary) to Paul Weiss, May 22, 1933.

L 203. Holt, Henry. One letter to CSP, December 2, 1893. One letter (Holt) to W. P. Garrison, November 24, 1893.

L 204. Hoover, J. T. One letter to CSP, October 9, 1872.

L 205. Hopkins, Charles Jerome. Two letters to CSP, June 20 and July 3, 1872.

L 206. Horsford, Eben N. One letter to CSP, December 3, 1891; one letter draft from, December 1891.

L 207. Howe, Tracy Jr. One letter to CSP, December 31, 1872.

L 208. Huntington, Daniel. One letter to CSP, March 25, 1894.

L 209. Huntington, Edward S. Twelve letters to CSP, July 21, 1892-December 8, 1893. One letter (Julie F. Huntington) to Juliette Peirce, October 7, n. yr.

L 210. Huntington, Edward V. Three letters and two postal cards to CSP, December 11, 1903 - March 1, 1904; ten letter drafts from, December 23, 1903-April 7, 1904, and n.d. One letter (Huntington) to Paul Weiss, May 20, 1929.

L 211. Huntington, Frederic Dan. Three letters to CSP, January 1897, and January 3 and 17, 1897.

L 212. Huntington, Mary. Five letters (copies) from CSP, [1903-09]; two letter drafts from CSP, January 22, 1907 and April 29, 1908. One letter draft (Juliette Peirce) to Huntington, n.d.: eight letters (Huntington) to Juliette Peirce, April 7, 1903-April 28, 1914; and one letter (MEH) to "Helen," with reminiscences of CSP, n.d.

L 213. Huntington, William Reed. Two letters to CSP, September 4, 1893 and May 12, 1897.

L 214. Husik, Isaac. Four letters to CSP, March 7-June 22, 1904; three letter drafts from, September 5, 1904 (2) and July 24, 1910. One letter (Edgar F. Smith) to CSP, March 28, 1904.

L 215. Hyatt, A. One letter to CSP, June 23, 1869.

L 216. Hyde's, J. E., Sons. One letter to CSP, January 29, 1873.

L 217. Illustrated American. One letter to CSP, October 12, n. yr.; one letter draft from, n.d.

L 218. The Independent (William Ward and Kimley Twining). Five letters to CSP, May 26, 1892-December 6, 1893; one letter draft from, May 4, 1892.

L 219. Ingraham, Andrew (?). One letter to CSP, December 10, 1903.

L 220. International Cyclopedia (The International Year Book). Five letters to CSP, December 29, 1900 February 1, 1901.

L 221. Jacobi, Dr. Mary Putnam. One letter and prescription to CSP, January 8, [1903?] ; one letter draft from, August 6, 1898.

L 222. James, Alice H. (Mrs. William James). One letter to CSP, January 16, 1913; one letter draft from, n.d. Seventeen letters (Alice James) to Juliette Peirce, February 9, 1905-December 2, 1915. One telegram (Alice James) to Juliette Peirce, April 19, n. yr.

L 223. James, Henry, Jr. Six letters to CSP, March 30, 1911-October 4, 1912; fragments of letter drafts from, n.d., but before March 30, 1911, because HJ-CSP (3/30/11) is the reply.

L 224. James, William. One letter (fragment) to CSP, n.d.; one postal card to CSP, Rome November 26, 1900; one telegram to CSP, March 20, 1903; several letter drafts and fragments of drafts from, most of which are dated or have been dated, with the dates ranging from [April 1897] to [December 25, 1909].

L 225. Jastrow, Joseph. One letter to CSP, November 22, 1893; one postal card to, January 4, 1894; one letter draft from, December 8, 1903.

L 226. Jessurun, Edward. One letter to CSP, January 26, 1901.

L 227. Jevons, W. S. One letter draft from CSP, May 16, 1875.

L 228. Johns Hopkins University (The Board). One letter draft (fragment) from CSP, [Spring 1884].

L 229. Johns Hopkins University (Logic Examinations). Apparently examinations written by CSP's students, probably at Johns Hopkins. One of these is by Allan Marquand, a contributor to the Johns Hopkins University Studies in Logic.

L 230. Johnson, Thomas M. Six letters to CSP, December 12, 1892-August 25, 1902. One letter (Johnson) to the editor of The Nation, August 15, 1902.

L 231. Kehler, J. H. One letter draft from CSP, June 22, 1911.

L 232. Keith, Revel. Three letters to CSP, June 29-July 20, 1872.

L 232a. Kempe, Alfred Bray. Pages from Nature (December 18, 1890), with a note directing CSP's attention to an article on p. 156.

L 233. Keyser, Cassius J. Two letters to CSP, July 27 and November 12, 1908; several letter
drafts from, September 29 and October 1-7, 1908, and n.d.

L 234. Kiernan, Thomas J. One letter to CSP, September 20, 1897.

L 235. King, Clarence. Seven letters to CSP, May 1-August 16, n. yr.; one letter draft from, n.d.

L 236. Knight, Harry E. Three letters to CSP, May 28, 1896-April 6, 1897.

L 237. Ladd-Franklin, Christine. Ninteen letters to CSP, December 16, 1900 - November 2, 1904; one fragment, possibly in C. Ladd-Franklin's late hand, n.d.; one postal card to, April 25, 1901. In addition there are 50 pp. of notes on CSP's "On the Algebra of Logic," American Journal of Mathematics 3:15-57, 1880, probably made when C. Ladd-Franklin was in CSP's advanced course in logic in the fall of 1880 at the Johns Hopkins University. These notes bear CSP's comments. Seventeen letter drafts from CSP, August 29, 1891 - [c.1908]. A fragment (TS., pp. 12-16) is dated [1900?]. Also included here is a manuscript of 13 pp. ("Criticism of Mrs. Franklin's Article"), [c.1900].

L 238. LaFarge, John. One letter to CSP, n.d.

L 239. Lafleur, Paul T. Three letters to CSP, April 16 - May 14, 1901; four letter drafts from, December 7, 1900 - May 11, 1901.

L 240. Lalande, AndrÈ. Three letter drafts from CSP, November 22-23, 1905. One letter (Arthur Burks) to Lalande, September 7, 1954. One letter (Lalande) to Burks, September 11, 1954, with a transcript of a letter, dated November 22, 1905, from CSP to Lalande.

L 241. Lamb Dictionary (John Howard Brown). One letter to CSP, December 14, 1901. Also: proofs (Lamb Dictionary).

L 242. Lane, George M. One letter to CSP, May 9, 1890.

L 243. Larkin, Adrian H. Two letters to CSP and Juliette Peirce, June 4, 1894 and December 4, 1900; one draft from CSP, n.d.

L 244. Lassiter, B. S. Six letters to CSP, July 12, n. yr., July 20, n. yr., October 12, n. yr., and n.d.

L 245. Lathrop, Francis (and H. A. Hammond Smith). Twenty letters (Lathrop) to CSP, September 10, 1897-February 11, 1903; five letters (Smith) to CSP, February 16, [1901] - December 3, 1901; two letter drafts from, July 24, 1898 and n.d.

L 246. Lawrence, W. Betts. One letter to CSP, July 1, 1890.

L 247. Leidy, Joseph, Jr. One letter to CSP, January 5, 1907.

L 248. Letter copybook: 1872-73.

L 249. Letterbook Index.

L 250. Libbie, C. F. and Company (Auctioneers of Literary Property). One letter to CSP, November 13, 1908.

L 251. Library of Congress. One letter to CSP, January 22, 1904.

L 252. Lodge, A. C. M. (Mrs. Henry Cabot Lodge). Fourteen letters to CSP, [July 28, 1894]-January 5, [1900], and n.d.; one postal card to, March 2, 1900; one letter draft from, [1903?]. Two letters (A. C. M. Lodge) to Juliette Peirce, January 19, 1915 and n.d. One letter (A. C. M. Lodge) to "Helen," [April 23, 1914].

L 253. Lodge, George Cabot. An announcement of the marriage of G. C. Lodge to Matilda Davis, August 18, 1900.

L 254. Lodge, Henry Cabot. Nine letters to CSP, January 20, 1874-October 30,
1899; two letter drafts (one fragmentary) from CSP, October 30, 1899 and n.d. Another fragment of a letter draft, probably to Lodge, n.d.

L 255. Longfellow, H. W. One letter to CSP, December 12, 1872.

L 256. Lowell, A. Lawrence. One letter to CSP, February 15, 1911; two letter drafts from, December 5, 1903 and July 20, 1910, and a fragment, n.d. Personal cards of A. L. Lowell and Mrs. Lowell. One letter (A. L. Lowell) to Dr. James H. Woods, September 26, 1931.

L 257. Lowell Institute and Lowell Lectures (Augustus Lowell and W. T. Sedgwick). Five letters (Lowell) to CSP, December 8, 1891-September 21, 1892; three letter drafts from, November 28 and December 5, 1903, and n.d. Nine letters (Sedgwick) to CSP, October 3, 1903 - January 1, 1904. One letter (B. E. Cotting) to CSP, November 10, 1892. Also a one-page (TS.) of a list of topics, presumably for lectures. One letter (W. H. Lawrence) to Dr. Henry Leonard, August 7, 1933. One letter (Dwyer) to Professor R. B. Perry, November 4, 1933.

L 258. Lunt, Adelaide (Mrs. George Lunt). One letter to CSP, [1896?].

L 259. Lutoslawski, Wincenty. One postal card to CSP, December 3, 1898.

L 260. MacArthur, John R. Three letters to CSP, November 5-24, 1913; one letter draft (fragment) from, n.d. One letter (J. R. MacArthur) to Juliette Peirce, April 6, 1912; one letter (Mrs. MacArthur) to Juliette Peirce, March 17, [1932]; six letters (Juliette Peirce) to Mrs. MacArthur and Mr. Neidlinger, April 2, 1924-October 19, 1932. One letter-to whom it may concern-signed "William Neidlinger," September 12, 1932.

L 261. MacColl, Hugh. One letter to CSP, May 16, 1883; one letter draft from, November 16, 1906. An announcement, August 17, 1887.

L 262. Macdonald, Duncan Black. One letter to CSP, August 3, 1904. One letter (Macdonald) to W. Garrison, July 12, 1904.

L 263. Macfarlane, Alexander. Two letters to CSP, March 29, 1881 and May 5, 1883.

L 264. Mackey, Mr. Three letters from CSP, n.d.

L 265. Macmillan and Company. Three letters to CSP, January 20, 1894-October 29, 1902.

L 266. Magown, George F. One letter to CSP, October 7, 1868.

L 267. Mann, W. E. One letter to CSP, March 12, 1896.

L 268. Maria-. One letter draft from CSP, n.d. Also a document, pertaining to Maria, n.d.

L 269. Marquand, Allan. Three letters to CSP, March 27, 1890 - February 3, 1894; one letter draft from, n.d.

L 270. Marquis, Who's Who. One letter to CSP, September 11, 1901.

L 271. Marshall, Henry Rutgers. Two letters to CSP, November 13, 1892 and January 22, 1900.

L 272. Mayer, Alfred Marshall. Three letters to CSP, January 3, 1873-April 12, 1890.

L 273. McCallan and Gould. Three letters to CSP, May 24-December 18, 1872.

L 274. McClure Encyclopedca. One letter to CSP, November 29, 1899.

L 275. McCoy, L. S. One letter to CSP, June 7, 1901.

L 276. McDonald, Samuel G. Personal card of Mrs. McDonald.

L 277. McGee, William John. One letter to CSP, September 21, 1908.

L 278. McKinney, Thomas Emery. One letter to CSP, December 7, 1904.

L 279. Men of Nineteen-Fourteen. One letter to CSP, n.d.

L 280. Merritt, Thomas. One letter draft from CSP, March 27, 1911. Mortgage: Juliette Peirce to Merritt, June 5, 1922. Bond and Warrant, May 18, 1922.

L 281. Merton, S. D. Two letters to CSP, April 10, 1905 and n.d. (first page is missing).

L 282. Metcalf, L. T. One letter to CSP, June 21, n. yr.

L 283. Metropolitan Club, Washington, D. C. One letter to CSP, December 28, 1881.

L 284. Meyer, Otto. One letter to CSP, July 19, 1888.

L 285. Michaelis, Kate W. One letter to CSP, May 15, 1903.

L 286. Michaelis, O. E. Nine letters to CSP, May 6, 1872-February 7, 1873.

L 287. Michelson, Albert A. A formal invitation (award of the Copley Medal to Michelson) to CSP, January 3, 1908.

L 288. Mighill and Company. Two letters to CSP, June 2 and 29, 1900.

L 289. Miller, Charles Ransom. Three letters to CSP, March 17-May 14, 1890; two letter drafts from, March 26 and 27, 1897.

L 290. Miller, Dickinson S. Four letters to CSP, March 17, n. yr., April 6, 1897 - July 17, 1902. See also Bryn Mawr.

L 291. Miller, George A. One letter to CSP, September 27, 1912.

L 292. Milwaukee Soldier's Monument. One letter to CSP, July 18, 1897.

L 293. Mind (Editor). Four drafts of two letters from CSP, [1896] and October 7, 1904.

L 294. Mitchell, Oscar Howard. One letter draft from CSP, December 21, 1882.

L 295. Mitchell, W. & G. One letter to CSP, July 29, 1904.

L 296. Montague, William Pepperrell. Two letters to CSP, July 6, 1898 and October 25, 1908. One letter (Henry J. Spangler, President of Ursinus College) to CSP, June 21, 1898.

L 297. Montgomery, Edmund. Three letters to CSP, May 7-October 21, 1892.

L 298. Montgomery, Thomas J. Two letters (TS., one of which is a copy) from CSP, June 18 and July 6, 1892. one letter draft from, June 15, 1892; and a "Preliminary Report upon the Woolf Process of Bleaching," June 16, 1892.

L 299. Moore, Eliakim H. Twelve letters to CSP, February 25, 1892-December 31, 1903. fifteen letter drafts, with fragments of, from, March 20, 1902 - November 21, 1904, and n.d.

L 300. Morison, George Shattuck. Fifty-seven letters to CSP, February 26, 1895 - January 7, 1903; three letters (carbons) from, December 14, 15, and 24, 1898; four letter drafts from, January 26, 1899-January 18, 1900. Three letters (Morison) to Juliette Peirce, June 1, 1898 - February 6, 1899; one letter (Morison) to J. M. Peirce, February 13, 1895; one letter (Morison) to the Clark, Dodge and Company, May 31, 1898.

L 301. Morley, Edward Williams. One letter to CSP, December 5, 1904; one letter draft from, December 9, 1904.

L 302. Morley, Frank (American Journal of Mathematics). One letter to CSP, October 19, 1902.

L 303. Morris, M. F. Two letters to CSP, January 7 and February 11, 1873.

L 304. Morse, Edward Sylvester. Three letter drafts from CSP, December 16, 1905, and n.d.

L 305. Mott, S. D. Two letters to CSP, November 12, 1890 and May 29, 1901.

L 306. Mottelay, Paul Fleury. Ten letters and one postal card to CSP, July 27, 1892-October 11, 1900; one letter draft from, n.d.

L 307. Muirhead, Helen Quincy (Mrs. James Fullerton M.). One letter to CSP, February 7, [1910]; one letter draft from, March 8, 1910. One letter (M. A. De Wolfe Howe) to Paul Weiss, September 10, 1931.

L 308. Müensterberg, Hugo. Three letters to CSP, April 15, 1903 - August 6, 1904.

L 309. Nagle, James F. (Dr.). Prescription and death notice.

L 310. National Academy of Sciences (George Comstock, S. F. Emmons, Arnold Hague, Ira Remsen). Eleven letters to CSP, October 20, 1893-December 1, 191-; one letter (typewritten copy) from CSP to Remsen, November 1, 1901. Diploma awarded CSP, April 18, 1877. Assorted items: invitations, list of nominees to membership, program and report.

L 311. National Cyclopedia of American Biography. Two letters to CSP, April 17, 1895 and July 16,1896. One letter to Juliette Peirce, Deeember 26, 1923. Two letters (Juliette Peirce and Mrs. Laura McLaughlin) to George Derby, Managing Editor, November 24, 1923 and n.d.

L 312. National Institute of Art, Science and Letters. A list of the members of the division of literature.

L 313. Nautical Almanac. Three letters to CSP, August 2, 1872-January 22, 1873.

L 314. Newcomb, Simon. Thirteen letters, including an invitation to meet the British Ambassador, to CSP, October 25, 1872-December 21, 1908; ten letter drafts from, January 17, 1889-July 28, 1892, and n.d.

L 315. Newell, William Wells. One letter draft from CSP, May 15,1904.

L 316. Newspaper Enterprise Association. One letter to CSP, August 10, 1910.

L 317. New York and Hartford Publishing Company. One letter to CSP, April 3, 1872.

L 318. New York Herald (editor). One letter draft, signed "Constant Reader," [c. 1906].

L 319. New York Mathematical Society. Four letters to CSP, September 7, 1891-April 6, 1894.

L 320. Nichols, Herbert. Seven letters to CSP, January 19, 1901-April 16, [1906?]; one letter draft from, November 22, 1905.

L 321. Norris, Howes, Jr. One letter to CSP, May 22, 1912; one letter draft from, begun May 28, 1912.

L 322. Oliver, James Edward. Three letters to CSP, April 21, 1871-February 25, 1893.

L 323. Osgood, James R. (Fields, Osgood, and Co.). Three letters and one telegram to CSP, June 2, 1869-February 20, 1873.

L 324. Osgood, William F. One letter to CSP, December 29, 1908.

L 325. Osler, William. One letter to CSP, October 24, 1904.

L 326. Otis, William K. Four letters to CSP, May 19, 1893, May 23, 1902, and n.d. One letter (Otis) to Juliette Peirce, June 13, 1891.

L 327. Palmer, Edward Henry. One letter to CSP, January 3, 1873.

L 328. Park and Tilford. Two statements, August 12, 1892 and June 6, 1894.

L 329. Passports. One letter from CSP to the Diplomatic and Consular Officers of the United States in Europe, April 13, 1880. Photostatic copy of passport and four special passports. Two letters (Passport Division) to Paul Weiss, August 19 and 27, 1931.

L 330. Patents, Commissioner of. Three letter drafts from CSP, July 20, 1894 (Bleaching Process); three letter drafts from, n.d. (Map Projections); fragments (2 pp.), n.d. An unsigned petition for caveat, 188- (for "certain improvements in Burners and Globes").

L 331. Peabody Institute (Baltimore). One letter to CSP, July 31, 1893.

L 332. Peck, George Mann. Draft of petition, March 1898. Also an assessment of property, 1904

L 333. Peirce, Benjamin. Three letters and one telegram to CSP, June 25, 1872-July 31, 1879; forty-five letters from, December 15, 1859-August 17, 1879; one letter draft from, March 20, 1873; six postal cards from, July 12, 1876-March 10, 1879.

L 334. Peirce, Benjamin Mills. Two letters from CSP, November 24 and December 18, 1859.

L 335. Peirce, Charles S. (Business and miscellaneous correspondence).
One letter (E. Wright) to CSP, February 13, 1873; one letter (G. Banlina) to CSP, March 28, 1882; one letter-advertisement (W. Miller) to CSP, August 26, 1897. Two bills (J. M. Sanford and Hewins and Hollis) to CSP, April 10, 1892 and June 30, 1804 respectively. Receipt from American Express Co. and an acknowledgment of an order by J. C. Hall Co. Also Century Association Amendment, June 6, 1891; petition for the adoption of an international auxiliary language; map of the American Exhibit, London 1887 (sent to CSP by J. B. W. Bidlock).

L 336. Peirce, Charlotte Elizabeth. Six letters to CSP, September 26, [1880]-May 1, [1885?]; one letter to CSP and Juliette Peirce, May 12, n. yr.; two letters to Juliette Peirce, January 26, [1884?] and December 27, n. yr.; two letters from CSP, October 16, 1870 and September 15, 1879.

L 337. Peirce, Harriet Melusina Fay (Mrs. C. S. Peirce). One letter to CSP, [1877]; six drafts from, August 28, 1870-January 23, 1876.

L 338. Peirce, Herbert H. O. Forty-two letters to CSP, September 14, 1886 December 16, 1904 telegrams to, October 26, 1872 and January 17, 1903; one telegram to Juliette Peirce, April 1914; ten letters or drafts of letters from CSP, August 21, 1859-November 1, 1907. Also a manuscript of 11 pp. (A21-A31), [c.1905], probably for H. H. D. Peirce. One letter (Helen J. Peirce) to Juliette Peirce, February 18, n. yr.

L 339. Peirce, James Mills. Eighty-seven letters to CSP, January 17, 1887-August 20, 1905; one telegram to, October 26, 1872; eighty-three letter drafts from, September 25, 1859-January 11, 1906, and n.d.

L 340. Peirce, Juliette (Mrs. C. S. Peirce). Four letters to CSP, n.d.; one telegram to, March 7, 1890; sixty-five letters from, March 28, 1889-June 21, 1907, and n.d.; ten letter drafts from, n.d.

L 341. Peirce, Sarah Mills (Mrs. Benjamin Peirce). Fifty-five letters to CSP, August 29, [1875]-August 30, [1887], and n.d.; one letter to CSP and Juliette Peirce, July 12, [1884]; twenty-one letters to Juliette Peirce, January 1, 1880-June 29, [1886]; forty-seven letters from CSP, May 11, 1859-April 3, 1887.

L 342. Perot, Rev. Elliston. One letter to CSP, November 28, 1905.

L 343. Perry, Bliss. One letter draft from CSP, June 24, 1907.

L 344. Perry, Thomas Sergeant. Nine letters to CSP, October 1, 1872-April 12, 1905; two letter drafts from, March 24, 1883 and n.d.

L 345. Peters, W. K. One letter to CSP, n.d.

L 346 Philosophical Society of Washington. One letter to CSP, February 24, 1873.

L 347. Pickering, Edward Charles. Seven letters to CSP, June 26, 1872-August 15, 1906; fragment of a letter draft from, n.d.

L 348. Pierce, Butler and Pierce Mfg. Co. Two letters to CSP, September 8, 1904 and October 11, 1906; two letter drafts from, September 16, 1904. Fragment, n.d.

L 349. Pierce, Josiah, Jr. One letter to CSP, May 2, 1888.

L 350. Pierpont, J. P. One letter to CSP, October 12, 1894.

L 351. Pinchot, Amos E. R. An invitation to the marriage of A. E. R. Pinchot to Gertrude Minturn, November 14, n. yr.

L 352. Pinchot, Gifford. Twelve letters to CSP, November 3, 1891-July 26, 1904; two letter drafts from, [1892] and July 26, 1905. Ten letters (Pinchot) to Juliette Peirce, June 23, 1921-August 10, 1934. One letter (Pinchot) to Alfred Marvin, June 6, 1933.

L 353. Pinchot, Gifford and Mrs. Miscellaneous: legislative letter of the Public Charities Association of Pennsylvania; letter to the Voters of Pike County; greetings; clippings.

L 354. Pinchot, James W. Three letters to CSP, May 5, 1890-March 16, 1894; one letter draft from, December 3, 1900.

L 355. Pinchot, Mrs. James W. Three letters to CSP, November I7, 1908-January 14, 1910; one letter draft from, April 22, 1897. Letter drafts from CSP and Juliette Peirce n.d. Thirteen letters (Pinchot) to Juliett Peirce November 1, 1908-June 22, 1914, and n.d.; one check (Juliette Peirce), August 18, 1894. A wedding invitation, Christmas card, and several personal cards.

L 356. Players Club. Three letters to CSP, June 1, 1889-November 28, 1891.

L 357. Plimpton, George Arthur. Ten letters to CSP, September 20, 1894-December 7, 1901; four letter drafts from, June 23, 1894, March 18, 1900, [1907?], and [May 12, 1903? or 1908?]. One letter (George Mann Peck) to CSP, January 5, 1901.

L 358. Post, Evening (New York). One letter to CSP, May 21, 1898.

L 359. Postmaster, Milford, Pa. Two letters from CSP, January 25, 1892 and February 24, 1905.

L 360. Powell, John Wesley. Two letters to CSP, June 19, 1890 and December 23, 1895.

L 361. Prang, L. and Company. One letter to CSP, March 27,1893.

L 362. Princeton University Library. One letter to CSP, February 15, 1902.

L 363. Purdon, John E. Four letters to CSP, November 17, 1892, January 2, 1893, and n.d. Also sphygmograph tracings and "Spirit Photographs" sent to CSP by Purdon on December 2, 1892.

L 364. Putnam, G. P. Memorandum of agreement for publication of The History of Science, February 28, 1898.

L 365. Putnam, Herbert (Library of Congress). One letter to CSP, December 20, 1901; one postal card to, April 12, 1904.

L 366. Quincy, Josiah ("Cousin Jo"). Five letter drafts from CSP, June 25-July 15, 1909, and n.d. Fragment, n.d.

L 367. Quincy, K. M. One letter to CSP, July 7, n. yr.; one letter draft from, April 16, 1904.

L 368. Reeder, General. Empty envelope; n.d. The envelope apparently contained an introduction for CSP to General Reeder.

L 369. Remsen, Ira. One letter draft from CSP, April 28, 1906.

L 370. Repsold and S^hne. One letter to CSP, January 6, 1873; one letter (dictated) from, February 14, 1873.

L 371. Retail Merchant's Reporting Association. One letter draft from CSP, June 21, 1897.

L 372. Reyes y Prosper, Ventura. One letter to CSP, March 5, 1891.
L 373. Rice, Sallie B. One letter to CSP, n.d. One letter to Juliette Peirce, n.d.; one letter to Helen Ellis (passed on to Juliette Peirce), n.d.

L 374. Richardson, Earnest Cushing. One letter to CSP, April 29, 1902; one letter draft from, n.d.

L 375. Ricketson, John H. One letter to CSP, May 20, 1897.

L 376. Risteen, Allan Douglas. Twenty-six letters to CSP, August 4, 1887-December 17, 1911; three postal cards to, July 12, 1913, and n.d.; five letter drafts from, March 24 and July 29, 1891, and n.d. One letter (George F. Parker) to CSP, January 28, 1903.

L 377. Ritchie, E. S. and Sons. Three letters to CSP, January 25 and 29, 1873, and December 31, n. yr.

L 378. Robert, A. One letter to CSP, July 3, 1911; one letter draft (possibly two drafts) from, September 11, 1911.

L 379. Roe, William J. One letter to CSP, October 17, 1892.

L 380. Rogers, Fairman. Two letters to CSP, January 22, 1873 and October 21, 1895.

L 381. Romeike, Henry. Two letters to CSP, January 9, 1894 and June 18, 1914.

L 382. Rood, Ogden N. Six letters to CSP, November 16, 1885-March 14, 1894;
one letter draft from, [1877-78].

L 383. Roosevelt, Theodore. One letter (Assistant Secretary) to CSP, April 10, 1905; one letter draft from, n.d.; two drafts (postal card) from, n.d.

L 384. Rose, Mrs. One letter draft from CSP, n.d.

L 385. Royce, Josiah. Seven letters to CSP, November 18, 1891-March 4, 1914; one letter (no apparent connection with CSP), n.d.; ten letter drafts from, January 19, 1902-August 22, 1905, and n.d. Royce's personal card with note inscribed on it. Also a single page, the heading of which reads: "Dr. Abbot accuses Professor Royce."

L 386. Russell and Erwin Mfg. Co. One letter draft from CSP, April 19, 1910.

L 387. Russell, Francis C. Thirty-three letters to CSP, January 16, 1888-December 10, 1908; two letters (copies) from, September 17, 1887 and n.d.; sixty letter drafts and three postal cards from, September 12, 1887-January 23, 1909, and n.d.; four telegrams from, February 6, 1893-May 13, 1896. One letter draft from CSP to Carus, n.d.; one letter draft from CSP to the Editor of the Monist, October 7, 1904. Also: a copy of a letter (Edward C. Higilen) to Russell, September 19, 1894 and Agapetos' article on religion (sent to CSP by Russell).

L 388. St. Lawrence Project (Stewart and Company: S. H. E. Stewart). Eleven letters to CSP, July 10, 1896-August 4, 1898; six letter drafts from, August 20, 1896-January 1, 1897. Fragments (5 pp.); n.d. An agreement, signed by CSP, signifying his part ownership of the St. Lawrence Power Co. and his right to one-fifth share of any stock which may be issued. One letter (H. H. Warren) to Charles R. Higgins, October 22, 1896, and a report (TS.) by John Bogart on a proposal to develop water power by the construction of a canal between the St. Lawrence and Grass Rivers in the town of Massena, St. Lawrence County, New York.

L 389. San Diego Society of Natural History. One letter to CSP, August 30, 1886.

L 390. Schiller, F. C. S. Two letters to CSP, April 30, 1905 and [May 6, 1905]; eight letter drafts from, May 12 and 23, 1905, September 10, 1906, and n.d.

L 391. Schott, Charles Anthony. Two letters to CSP, July 6 and September 10, 1872.

L 392. Schroeder, Ernst. Seven letters and one postal card to CSP, February 1, 1890-December 7, 1898; three letter drafts from, April 7, 1897 and n.d.

L 393. Schwatt, Isaac J. One letter to CSP, September 23, 1895.

L 394. Science (Weekly). One letter (N. C. D. Hodges) to CSP, July 20, 1892.

L 395. Scribner's, Charles, and Sons. Six letters to CSP, September 1, 1893-June 4, 1900.

L 396. Searle, Arthur. One letter to CSP, January 22, 1873.

L 397. Searle, Father George M. One letter draft (and typed copy) from CSP, August 9, 1895.

L 398. Second National Bank, New York. Two letter drafts from CSP, January 5, 1910, and n.d.

L 399. Sellers, William. One letter to CSP, February 11, 1904; one letter draft (fragment) from, February 22, 1904. One letter (A. Sellers) to Juliette Peirce, February 17, n. yr.

L 400. Sever, C. M. One letter to CSP, June 27, 1872.

L 401. Shaler, Nathaniel Southgate. One letter to CSP, July 6, 1872. Shaler Memorial Fund.

L 402. Shaw, James Byrnie. One letter to CSP, June 21, 1895.

L 403. Sheffield, Justus Pearl. One letter to CSP, April 17, 1892.

L 404. Sheldon, Wilmon Henry. One letter to CSP, April 20, 1903.

L 405. Sheltering Arms. One letter to CSP, April 13, 1904; four letter drafts from, March 13 and 14, 1904, and n.d. Two letters (Sheltering Arms) to Juliette Peirce, January 20 and September 5, 1904.

L 406. Shippen, Joseph. One letter to CSP, November 17, 1903.

L 407. Sigsbee, C. D. Two letters to CSP, March 31, 1894 and December 28, 1895.

L 408. Smith, William Benjamin. Five letters to CSP, January 6, 1908-August 1912; six letter drafts from, July 15, 1897, July 16, 1904, July 25, 1908, and n.d.

L 409. Smithsonian Institution (Hodge, Karr, Langley, Rathbun, Walcott, Winlock). Forty-five letters to CSP, January 17, 1894-February 3, 1911; six letter drafts from CSP to S. P. Langley, May 20, 1901-June 1, 1908, and n.d. One letter (Langley) to Captain Davis, January 29, 1900. Miscellaneous materials: printed matter.

L 410. Snow, Eben. Two letters to CSP, May 11, 1872 and January 9, 1873; one letter from, January 7, 1872.

L 411. Society of Arts. One letter to CSP, August 9, 1902.

L 412. S^hmer, Mr. One letter draft from CSP, n.d.

L 413. Sommer, Ernst J. Eight letters to CSP, April 10, 1902-October 21, 1902. One letter (E. J. Sommer) to Juliette Peirce, April 22, 1914. One letter (Lena Sommer) to Juliette Peirce, May 20, 1902. One letter draft (CSP for Juliette Peirce) to Mrs. E. J. Sommer, (October 1902?].

L 413a. Sommer, H. Otto. One letter draft (photostat) from CSP, n.d. Reprint of Dr. Sommer's article "The Abdomino-Sacral and other methods for the Extirpation of Rectal Cancer, "Medical Times, July-August 1901.

L 414. Spencer, Herbert. One letter to CSP, March 5, 1894.

L 415. Stechert, G. E. One letter to CSP, July 22, n. yr.; one bill, July 1, 1891; one letter draft from, n.d.

L 416. Stedman, Edmund C. Three letters to CSP, August 15, 1898-February 7, 1900. A certificate of voucher.

L 417. Steinheil S^hne. Two letters to CSP, May 28 and July 20, 1872.

L 418. Sterneck, Robert von. Personal card with note (Sterneck's?) on reverse side, November 21, 1895.

L 419. Stevens, B. F. One letter to CSP, July 18, 1872.

L 420. Stewart, William M. One letter to CSP, October 18, 1893.

L 421. Stickney, Albert. Sixty-five letters to CSP, September 30, 1891-December 7, 1907; twenty-four letters to Juliette Peirce, February 25, 1896-May 4, 1933; letter drafts (CSP and Juliette Peirce) to Stickney, November 12, 1906, and n.d.; three letters (Juliette Peirce) to Stickney, n.d. Also: two letters (copies) from CSP to Francis Blake, December 25 and 28, 1896. One letter (Elizabeth Stickney) to Juliette Peirce, January 4, 1904. Two letters (J. H. Van Etten) to Stickney, January 19 and 20, 1897.

L 422. Stimson, D. M., Dr. Two letters to CSP, November 20, 1890 and [April 1897]

L 423. Stokes, Sir George Gabriel. Two letters (TS.) to CSP, February 13, 1886.

L 424. Story, William Edward. Three letters to CSP, June 13, 1899-December 1, 1900; nine
letter drafts from, March 22, 1896-January 26, 1909.

L 425. Stout, George Frederick. One letter to CSP, August 14, 1911; one letter draft from, October 28, 1906.

L 426. Strach, Mr. One letter draft from CSP, [1906?].

L 427. Strong, Charles Augustus. Two letters to CSP, August 2, 1903 and April 7, 1904; two letter drafts from, July 25, 1904.

L 428. Stuart, Henry W. One letter to CSP, April 12, 1905.

L 429. Studies in Logic. Copyright, March 22, 1883.

L 430. Subscribers: Petrus Peregrinus. Two letters and one postal card to CSP, January 23 - March 5, 1894.

L 431. Subscribers: "Pike County Press Series." Five letters to CSP, November 8-December 17, 1895. Also: a draft and typescript of "A New Doctrine of Reasoning" and "First Introduction."

L 432. Subscribers: Principles of Philosophy. Letters of thirty subscribers (1894-95). Thirteen requests for Prospectus and Syllabus.

L 433. Sullivan, Thomas Russell. One letter to CSP, June 10, 1893.

L 434. Sun, New York (editor). One letter (Thomas Hitchcock) to CSP, February 11, 1892; one letter draft from, n.d.

L 435. Taber, Henry. Four letters to CSP, February 23, 1892-March 13, 1895. One letter (Taber) to Paul Weiss, September 3, 1931.

L 436. Tait, Anna D. T. One letter to CSP, October 18, n. yr, Two letters (Tait) to Juliette Peirce, February 29, 1886, and n.d.

L 437. Tait, John R. One letter to CSP, November 4, 1896.

L 438. Talcott, T. W. R. One telegram to CSP, November 6, 1872.

L 439. Tatlock, John. One letter to CSP, February 8, 1907.

L 440. Thayer, William R. Two letters to CSP, November 23 and 29, 1903.

L 441. Thilly, Frank. One postal card to CSP, January 28, 1905.

L 442. Thomas, R. and Son. One letter to CSP, July 24, 1872.

L 443. Thurston, Robert Henry. One letter to CSP, February 2, 189(?).

L 444. Times, New York (editor). One letter draft from CSP, December 1, 1908. ,

L 445. Todd, David Peck. One letter to CSP, July 10, 1889.

L 446. Toller, Samuel. One letter to CSP, January 16, 1901.

L 447. Trevor, Joseph Ellis. One letter to CSP, September 21, 1909.

L 448. University of the South. One letter to CSP, February 27, 1894.

L 449. Vailati, Giovanni. Empty envelope, n.d.

L 450. Van Etten, J. H. Two letters to CSP, December 3, 1895 and July 11, 1898. Three letters (Van Etten) to Juliette Peirce, March 14, 1895-November 9, 1895. One letter (Van Etten) to Albert Stickney, May 25, 1896.

L 451. Van Nostrand, D. Co. (W. H. Farrington). Three letters to CSP, October 31, 1888, January 24, 1889, and March 7, 18-; two letters (dictated by Speirs) to CSP, May 15, 1902 and November 5, 1903. Three statements, December 8, 1888-January 23, 1889.

L 452. Venable, Richard M. One letter to CSP, April 24, 1889.

L 453. Wake, C. Staniland. One letter to CSP, December 10, 1892.

L 454. Walcott, Charles D. Three letters to CSP, January 5-29, 1897, the last of which contains an enclosed letter (C. R. Van Hise) to the Director, U.S. Geological Survey (January 24, 1897); one letter draft (97 pp. on the problem of slaty cleavage) from CSP, January 1897.

L 455. Walker, F. Amasa. One letter to CSP, September 20, 1893.

L 456. Water, Leo. Bill (?) signed Benjamin Vannoy and statement of the account of Leo Water, March 2, 1895 and n.d.

L 457. Walters, Henry G. Six letters to CSP, October 8, 1908 - January 3, 1914; one letter to CSP and Juliette Peirce, March 4, 1914.

L 458. Ward, H. B. One letter to CSP, January 20, 1873.

L 459. Waring, M. E. (Atlantic Lyceum Bureau). Two letters to CSP, February 3 and 17, 1894.

L 460. Waterbury Clock Company. One letter to CSP, November 15, 1906.

L 461. Watson, John. One letter to CSP, April 18, 1895.

L 462. Webster, Arthur G. One letter draft from CSP, August 13, 1910.

L 463. Welby, Lady Victoria. Eighteen letters to CSP, May 24, 1903 - June 27, 1911; two postal cards to, November 20 and December 17, 1903; three letters to Juliette Peirce, October 18, 1909 - February 25, (1912), the last of which is from Maria L. H. Welby, daughter-in-law of Lady Welby; thirteen letter drafts from CSP, May 4, 1904 - March 14, 1909, and n.d.; one letter draft (Juliette Peirce, but in CSP's hand), n.d. Fragment, n.d. (February 9, 1909 in upper right corner applies to some independent calculations). One letter (Open Court) to CSP, November 1, 1898. Two letters (J. W. Slaughter) to CSP, August 20, 1909 and April 25, 1911.

L 464. Westermann, B., and Company. One letter to CSP, June 28, 1872.

L 465. Weston, Stephen F. One letter to CSP, July 27, 1905.

L 466. White, James T. (National Cyclopedia of American Biography). Two letters to CSP, December 13, 1895 and April 14, 1896.

L 467. Whiton-Stuart, J. P. One letter to CSP, June 14, 1904.

L 468. Wilder, Bunt S. One letter to CSP, December 5, 1887.

L 469. Wilson, J. Cook, One postal card to CSP, April 30, 1905.

L 470. Wilson, Louis N. One letter to CSP, March 9, 1906.

L 471. Winchester, W. L. Two letters to CSP, May 22 and 27, 1887.

L 472. Winlock, Joseph. Nine letters to CSP, January 16, 1872 - February 2, 1873; three letter drafts from, December 10, 1871 - October 12, 1873.

L 473. Winsor, Justin. One letter to CSP, March 15, 1894.

L 474. Withers, John W. One letter to CSP, January 6, 1904.

L 475. Wolf, C. One letter to CSP, July 9, 1876.

L 476. Woodbridge, Frederick J. E. One letter to CSP, December 12, 1903.

L 477. Woods, Frederick Adams. One letter to CSP, October 10, 1913; five letter drafts from, July 26, 1911 - Christmas 1913. One letter to Albert Edward Wiggam, February 12, n. yr. One letter to James H. Woods, August 22, 1931. Fragments, n.d.

L 478. Wundt, Wilhelm. One letter to CSP, May 2, 1867.

L 479. Yoder, A. H. One letter to CSP, April 2, 1894.

L 480. Young, Charles Augustus. Three letters to CSP, May 7 and 23, 1872, and May 16, n. yr.

L 481. Zumbrack, A. One letter to CSP, February 24, 1873.

L 482. Unidentified Correspondents. Five letters to CSP and Juliette Peirce, April 15, 1881 - June 19, 1911; one postal card to CSP, June 13, 1895; eleven letter drafts from CSP, April 4, 1864 - Christmas 1913. Fragments, n.d.

L 483. Unidentified Correspondents. Letter drafts (CSP) to editors of unidentified newspapers.

L 484. Unidentified Correspondents. Fragments of letters to CSP, n.d.