| Folder | 1 | Abbe, Cleveland. Includes letter to Charles E. Munroe, October 26, 1896. | |
| Folder | 2 | Abbot, Charles G. | |
| Folder | 3 | Abbot, Henry Larcom. | |
| Folder | 4 | Abbott, Charles Conrad. Includes letter to Ferdinand Vandeveer Hayden, February 12, 1876. | |
| Folder | 5 | Abel, Othenio. | |
| Folder | 6 | Adams, Charles Baker. | |
| Folder | 7 | Agassiz, Alexander. Includes published letters to Hon. Marshall McDonald, United States Commissioner of Fish and Fisheries, March 14, 1891; April 14, 1891; and April 25, 1891. | |
| Folder | 8 | Agassiz, Louis Jean. Includes published letter to Benjamin Peirce, superintendent, United States Coast Survey, December 2, 1891. Ahiers, Francis Henry. See under Ray S. Bassler. | |
| Folder | 9 | Aldrich, John Merton. | |
| Folder | 10 | Almera, Jaume. | |
| Folder | 11 | Anderson, Frank Marion. | |
| Folder | 12 | Angelin, Nils Peter. | |
| Folder | 13 | Angell, James. | |
| Folder | 14 | Armstrong, Edwin James. | |
| Folder | 15 | Ashburner, Charles Albert. | |
| Folder | 16 | Austin, George M. | |
| Folder | 17 | Baird, Spencer F. Includes letters to Ferdinand Vandeveer Hayden, November 15, 1876; Joseph Henry, April 15, ? ; and Mr. Edwards, April 24, 1884. Baker, Herbert Arthur. See under Frederick Eugene Wright. | |
| Folder | 18 | Baker, Marcus. Ball, Francis Matthew. See under Norman Levi Bowen. | |
| Folder | 19 | Bancroft, John Bevis Beeston. | |
| Folder | 20 | Barker, George Frederick. Includes letter to Spencer F. Baird, September 17, 1884. | |
| Folder | 21 | Barlow, Alfred Ernest. | |
| Folder | 22 | Barnard, Edward Emerson. | |
| Folder | 23 | Barrande, Joachim. | |
| Folder | 24 | Barrell, Joseph. | |
| Folder | 25 | Barrois, Charles. | |
| Folder | 26 | Bartlett, William H. C. | |
| Folder | 27 | Bartsch, Paul. | |
| Folder | 28 | Bassler, Ray S. | |
| Folder | 29 | Bather, Francis Arthur. | |
| Folder | 30 | Baur, Georg Herman. | |
| Folder | 31 | Bausch, Edward and William Bausch. |
Box 2 of 19
Beasley, Cyril George. See under Norman Levi Bowen.
| Folder | 1 | Becker, George Ferdinand. Includes letter to Dr. Barus, August 1, 1900, and an anonymous correspondent, July 1, 1900. | |
| Folder | 2 | Beecher, Charles Emerson. Includes letter to Charles Schuchert, May 12, 1899. | |
| Folder | 3 | Beede, Joshua William. | |
| Folder | 4 | Beesley, Thomas. | |
| Folder | 5 | Bekkar, Hendrik. | |
| Folder | 6 | Bell, Alexander Melville. | |
| Folder | 7 | Bell, Robert. Bell, William David. See under Ray S. Bassler. | |
| Folder | 8 | Benjamin, Marcus. | |
| Folder | 9 | Berthelot, Marcelin. | |
| Folder | 10 | Bertrand, Marcel. | |
| Folder | 11 | Beyrich, Ernst. | |
| Folder | 12 | Bidwell, John. | |
| Folder | 13 | Billings, Elkanah. Includes letter to Edward Orton, May 7, 1872. | |
| Folder | 14 | Billings, John Shaw. Includes letter to Spencer F. Baird, January 13, 1885, and Dr. Becker, December 20, 1909. | |
| Folder | 15 | Billings, Walter R. | |
| Folder | 16 | Bishop, Heber Reginald. | |
| Folder | 17 | Blake, John Hopwood. | |
| Folder | 18 | Blake, William Phipps. Includes letter to George P. Merrill, July 3, 1895. | |
| Folder | 19 | Blandy, John Frederic. Includes letter to William P. Blake, July 13, 1875. | |
| Folder | 20 | Bleicher, Marie-Gustave. | |
| Folder | 21 | Boltwood, Bertram Borden. | |
| Folder | 22 | Bombicci, Ruigi. | |
| Folder | 23 | Bonney, Thomas George. Includes letter to anonymous correspondent, January 13, 1879. | |
| Folder | 24 | Booth, James Curtis. Includes manuscript on "Benefits resulting from the Survey," undated. | |
| Folder | 25 | Borg, Folk. Boulton, William Savage. See under Frederick Eugene Wright. | |
| Folder | 26 | Bowditch, Henry Pickering. See also under Simon Newcomb, folder 2. | |
| Folder | 27 | Bowen, Norman Levi. | |
| Folder | 28 | Bownocker, John Adams. | |
| Folder | 29 | Brady, Henry Bowman. | |
| Folder | 30 | Branner, John Casper. | |
| Folder | 31 | Brashear, John Alfred. | |
| Folder | 32 | Breasted, James Henry. | |
| Folder | 33 | Brewer, William H. | |
| Folder | 34 | Bridge, Thomas William. | |
| Folder | 35 | Brigham, Albert Perry. | |
| Folder | 36 | Brinton, Daniel G. | |
| Folder | 37 | Broadhead, Garland Carr. Includes letter to George P. Merrill, April 1899. | |
| Folder | 38 | Brock, Reginald Walter. | |
| Folder | 39 | Brooks, Alfred H. | |
| Folder | 40 | Brooks, Thomas Benton. | |
| Folder | 41 | Brooks, William Keith. |
Box 3 of 19
| Folder | 1 | Brown, Amos Peaslee. | |
| Folder | 2 | Brown, Ernest William. | |
| Folder | 3 | Brown, Roland Wilbur. | |
| Folder | 4 | Brown, S. C. | |
| Folder | 5 | Bruce, Archibald. | |
| Folder | 6 | Brush, George Jarvis. See also under Simon Newcomb, folder 2. | |
| Folder | 7 | Buch, Leopold von. | |
| Folder | 8 | Buckland, Frank. | |
| Folder | 9 | Buckman, Sidney Savory. | |
| Folder | 10 | Burchard, Ernest F. Butterley, Donald. See under Norman Levi Bowen. | |
| Folder | 11 | Bybee, Halbert Pleasant. Includes letter from Mrs. Ruth Bybee to Dr. Cumings, July 17, 1958. | |
| Folder | 12 | Cadwalader, John Lambert. | |
| Folder | 13 | Cahn, Lazard. | |
| Folder | 14 | Calvin, Samuel. | |
| Folder | 15 | Campbell, Guy. | |
| Folder | 16 | Canfield, Frederick Alexander. | |
| Folder | 17 | Canu, Ferdinand. | |
| Folder | 18 | Capellini, Giovanni. | |
| Folder | 19 | Carmichael, Leonard. | |
| Folder | 20 | Carpenter, Franklin R. | |
| Folder | 21 | Carty, John Joseph. | |
| Folder | 22 | Caswell, Alexis. | |
| Folder | 23 | Chadwick, George Halcott. | |
| Folder | 24 | Chamberlin, Rollin Thomas. | |
| Folder | 25 | Chamberlin, Thomas Chrowder. | |
| Folder | 26 | Chandler, Charles Frederick. | |
| Folder | 27 | Chaney, Ralph Works. Chardin, Pierre Teilhard de. See under Frederick Eugene Wright. | |
| Folder | 28 | Chittenden, Russell H. | |
| Folder | 29 | Clark, Austin H. | |
| Folder | 30 | Clark, Charles Upson. | |
| Folder | 31 | Clark, John Willis. | |
| Folder | 32 | Clark, William Bullock. | |
| Folder | 33 | Clarke, Frank Wigglesworth | |
| Folder | 34 | Clarke, John Mason. | |
| Folder | 35 | Claypole, Edward Waller. Clayton, Patrick Andrew. See under Ray S. Bassler. | |
| Folder | 36 | Cleaveland, Parker. | |
| Folder | 37 | Cleland, Herdman Fitzgerald. | |
| Folder | 38 | Cobbold, Edgar Sterling. | |
| Folder | 39 | Cockerell, Theodore D. A. | |
| Folder | 40 | Coffin, John Huntington Crane. Includes letter to Prof. Hall, April 26, 1886. | |
| Folder | 41 | Comstock, Cyrus Ballou. | |
| Folder | 42 | Comstock, George C. | |
| Folder | 43 | Comstock, Theodore Bryant. Includes letter to anonymous correspondent, June 29, 1876. | |
| Folder | 44 | Conkling, Alfred R. | |
| Folder | 45 | Conrad, Timothy Abbott. | |
| Folder | 46 | Conybeare, William Daniel. |
Box 4 of 19
| Folder | 1 | Cook, George Hammell. Includes letter to George P. Merrill, July 16, 1887. | |
| Folder | 2 | Cooke, C. Wyeth. | |
| Folder | 3 | Cooper, Byron Nelson. | |
| Folder | 4 | Cooper, G. Arthur. | |
| Folder | 5 | Cooper, Thomas. Includes letter from Ernest A. Viulleumier to Edgar F. smith, December 13, 1923. | |
| Folder | 6 | Cope, Edward Drinker. Includes letter to George Brown Goode, April 10, 1899, and a biographical manuscript fragment. | |
| Folder | 7 | Costa Sena, Joaquim Candido. | |
| Folder | 8 | Cottrell, Frederick Gardner. | |
| Folder | 9 | Coues, Elliott. | |
| Folder | 10 | Cox, Edward Travers. | |
| Folder | 11 | Coxe, Eckley B. Includes letter to Ben. W. Austin, December 3, 1894. | |
| Folder | 12 | Cozzens, Issachar, Jr. | |
| Folder | 13 | Crafts, James Mason. | |
| Folder | 14 | Crane, Will Edwin. | |
| Folder | 15 | Crookes, Sir William. | |
| Folder | 16 | Crosby, William Otis. | |
| Folder | 17 | Cumings, Edgar Roscoe. | |
| Folder | 18 | Curie, Marie Sklodowska. | |
| Folder | 19 | Curtis, George Carroll. | |
| Folder | 20 | Cushing, Henry Platt. | |
| Folder | 21 | D'Achiardi, Antonio. | |
| Folder | 22 | Dall, William H. | |
| Folder | 23 | Daly, Reginald Aldworth. | |
| Folder | 24 | Dana, Edward Salisbury. | |
| Folder | 25 | Dana, James Dwight. Includes letter to Ferdinand Vandeveer Hayden, January 22, 1875. | |
| Folder | 26 | Dana, Samuel Luther. | |
| Folder | 27 | Darton, Nelson Horatio. | |
| Folder | 28 | Daubree, G. Auguste. | |
| Folder | 29 | Davidson, Thomas Davis, Arthur George. See under Norman Levi Bowen. | |
| Folder | 30 | Davis, William Morris. | |
| Folder | 31 | Dawaon, George M. Includes letter to George P. Merrill, April 7, 1896. | |
| Folder | 32 | Dawson, John William. Includes letter to Spencer F. Baird, February 5, 1883 (?). |
Box 5 of 19
| Folder | 1 | Deane, James. | |
| Folder | 2 | Dechen, Heinrich von. | |
| Folder | 3 | Decker, Charles Elijah. | |
| Folder | 4 | DeGolyer, Everette Lee. | |
| Folder | 5 | DeKovinck, Laurent-Guillaume. | |
| Folder | 6 | Delesse, Achille-Ernest-Oscar-Joseph. Includes letter to Ferdinand Vandeveer Hayden, December 14, 1879. | |
| Folder | 7 | DeLesseps, Viscount Ferdinand. | |
| Folder | 8 | Delgado, Joaquim Felippe Nery da Encarnacao | |
| Folder | 9 | Derby, Orville Adelbert. Dinham, Charles Hawker. See under Frederick Eugene Wright. | |
| Folder | 10 | Dodge, William Earl. | |
| Folder | 11 | Doelter y Cisterich, Cornelio. | |
| Folder | 12 | Dohrn, Anton. | |
| Folder | 13 | Dolomieu, Deodat. | |
| Folder | 14 | Dormal, Victor. | |
| Folder | 15 | Drevermann, Fritz. | |
| Folder | 16 | Duane, William. | |
| Folder | 17 | Duncan, Peter Martin. Durham, Thomas Stanley. See under Ray S. Bassler. | |
| Folder | 18 | Du Toit, Alexander Logie. | |
| Folder | 19 | Dutton, Clarence Edward. Includes letters to O. T. Mason, May 11, 1892, and ? Becker, September 26, 1885. | |
| Folder | 20 | Dwight, William Buck. | |
| Folder | 21 | Dyche, D. T. D. | |
| Folder | 22 | Eakle, Arthur Starr. | |
| Folder | 23 | Eaton, Amos. Eccles, James Roland. See under Norman Levi Bowen. | |
| Folder | 24 | Edison, Thomas Alva. Edwards, Wilfred Norman. See under Norman Levi Bowen. | |
| Folder | 25 | Egerton, William Henry. | |
| Folder | 26 | Eimbeck, William. | |
| Folder | 27 | Eldridge, George Homans. Includes letter to ? Becker, December 15, 1896. | |
| Folder | 28 | Emerson, Benjamin Kendall. | |
| Folder | 29 | Emmons, Ebenezer. | |
| Folder | 30 | Emmons, Samuel Franklin. Includes letters to George P. Merrill, June 20, 1897, January 30, 1905, and August 16, ?; and, Whitman Cross to Merrill, January 26, 1927. | |
| Folder | 31 | Endlich, Frederick M. | |
| Folder | 32 | Engelmann, George |
Box 6 of 19
| Folder | 1 | Etheridge, Robert. Includes letter to ? Woodward, January 8, 1886. | |
| Folder | 2 | Ettingshausen, Constantin Freiherr von. Fallot, Paul. See under Ray S. Bassler. | |
| Folder | 3 | Farlow, William Gilson. | |
| Folder | 4 | Favre, Ernest. | |
| Folder | 5 | Featherstonhaugh, George William. | |
| Folder | 6 | Ferasin, Francesco. | |
| Folder | 7 | Fernald, Charles Henry. | |
| Folder | 8 | Fewkes, J. Walter. Field, Richard Montgomery. See under Ray S. Bassler. | |
| Folder | 9 | Fischer, Henri. | |
| Folder | 10 | Fisher, Albert Kenrick. | |
| Folder | 11 | Fisher, Osmond. | |
| Folder | 12 | Fletcher, Sir Lazarus. | |
| Folder | 13 | Floyd, Sergeant Charles. | |
| Folder | 14 | Foerste, August F. | |
| Folder | 15 | Foote, Albert E. | |
| Folder | 16 | Forbes, Stephan Alfred | |
| Folder | 17 | Ford, William Ebenezer | |
| Folder | 18 | Foshag, William F. | |
| Folder | 19 | Foster, Sir Clement LeNeve. | |
| Folder | 20 | Fox-Strangeway, Charles Edward. | |
| Folder | 21 | Fraipont, Charles de | |
| Folder | 22 | Frazer, Persifor. | |
| Folder | 23 | Freeman, John Ripley. Freire d' Andrade, Carlos Bento. See under Norman Levi Bowen. | |
| Folder | 24 | Friedel, Charles. | |
| Folder | 25 | Friedel, Georges. | |
| Folder | 26 | Fritsch, Karl Freiherr von. | |
| Folder | 27 | Fuchs, Leonhard. | |
| Folder | 28 | Fuller, Melville Weston. | |
| Folder | 29 | Gabb, William More. | |
| Folder | 30 | Galloway, Jesse James. | |
| Folder | 31 | Gannett, Henry. | |
| Folder | 32 | Gardner, Julia Anna. | |
| Folder | 33 | Gatschet, Albert Samuel. | |
| Folder | 34 | Gaudry, Jean Albert. | |
| Folder | 35 | Geare, Randolph Iltyd. | |
| Folder | 36 | Geikie, Archibald. | |
| Folder | 37 | Geinitz, Hanns Bruno. | |
| Folder | 38 | Genth, Frederick Augustus. | |
| Folder | 39 | Gesner, Abraham. | |
| Folder | 40 | Gibbs, Josiah Willard. | |
| Folder | 41 | Gibbs, Oliver Wolcott. | |
| Folder | 42 | Gidley, James W. |
Box 7 of 19
| Folder | 1 | Gilbert, Grove Karl. Includes letter to George P. Merrill, January 4, 189(?). | |
| Folder | 2 | Gill, Theodore Nicholas. Includes letters to George P. Merrill, February 23, 1912, and J. (?) Hall, March 8, 1865. | |
| Folder | 3 | Gilman, Daniel Coit. | |
| Folder | 4 | Gilmore, Charles W. | |
| Folder | 5 | Girty, George Herbert. | |
| Folder | 6 | Goldschmidt, Victor. | |
| Folder | 7 | Gooch, Frank Austin. | |
| Folder | 8 | Goodale, George Lincoln. | |
| Folder | 9 | Goode, George Brown. Includes letter to William Jones Rhees, September 29, (?). | |
| Folder | 10 | Gorgas, William Crawford. | |
| Folder | 11 | Gosselet, Jules. | |
| Folder | 12 | Gould, Benjamin Apthorp. See also under Simon Newcomb, folder 2. Gourley, Harold John Frederick. See under Norman Levi Bowen. | |
| Folder | 13 | Grabau, Amadeus. Grabham, George Walter. See under Frederick Eugene Wright. | |
| Folder | 14 | Gratacap, Louis Pope. | |
| Folder | 15 | Green, William Lowthian | |
| Folder | 16 | Greene, George K. | |
| Folder | 17 | Gregory, John Walter. | |
| Folder | 18 | Groth, Paul. | |
| Folder | 19 | Guppy, Robert John Lechmere. | |
| Folder | 20 | Haeckel, Ernst. | |
| Folder | 21 | Hague, Arnold. | |
| Folder | 22 | Hague, James Duncan. Includes letter to (?) Blake, May 8, 1876. Haig, David Salusbury. See under Frederick Eugene Wright. | |
| Folder | 23 | Hale, Kelly. | |
| Folder | 24 | Hall, Asaph. | |
| Folder | 25 | Hall, James. Includes letters from John M. Clarke to Charles D. Walcott, September 30, 1899, and Ira Remsen to Walcott, December 9, 1898. Hall, Thomas Clifford Fitzwilliam. See under Norman Levi Bowen. | |
| Folder | 26 | Halstead, William Stewart. | |
| Folder | 27 | Harkness, William. | |
| Folder | 28 | Harpe, Phillippe de la. |
Box 8 of 19
| Folder | 1 | Harris, Gilbert Dennison. | |
| Folder | 2 | Harris, Israel H. | |
| Folder | 3 | Hartt, Charles Frederic | |
| Folder | 4 | Hass, Wilbert Henry. | |
| Folder | 5 | Hatcher, John Bell. | |
| Folder | 6 | Hauer, Franz V. | |
| Folder | 7 | Hawn, Frederick. | |
| Folder | 7A | Hay, Oliver Perry | |
| Folder | 8 | Hayden, Ferdinand Vandeveer. | |
| Folder | 9 | Hayes, Charles Willard. | |
| Folder | 10 | Hebert, Edmond. | |
| Folder | 11 | Hector, Sir James. | |
| Folder | 12 | Heer, Oswald. | |
| Folder | 13 | Heilprin, Angelo. Includes letter to George P. Merrill, May 26, 1892. | |
| Folder | 14 | Heim, Albert | |
| Folder | 15 | Henderson, Yandell. | |
| Folder | 16 | Henry, Joseph. Henson, Frederick Arthur. See under Norman Levi Bowen. | |
| Folder | 17 | Herrick, Charles Judson. | |
| Folder | 18 | Herrick, Clarence Luther. | |
| Folder | 19 | Herschel, Caroline Lucretia. Heslop, Mary Kingdon. See under Frederick Eugene Wright. | |
| Folder | 20 | Hewitt, Abram Stevens. Includes letter to Ferdinand Vandeveer Hayden, January 26, 1876. | |
| Folder | 21 | Hibbard, Raymond R. Hickling, Henry George Albert. See under Frederick Eugene Wright. | |
| Folder | 22 | Hilgard, Eugene Woldemar. | |
| Folder | 23 | Hilgard, Julius Erasmus. | |
| Folder | 24 | Hill, George William. | |
| Folder | 25 | Hill, Robert Thomas | |
| Folder | 26 | Hillebrand, William F. Hinton, Martin Alister Campbell. See under Ray S. Bassler. | |
| Folder | 27 | Hirschwald, Julius. | |
| Folder | 28 | Hitchcock, Edward. | |
| Folder | 29 | Hodge-Smith, Thomas. | |
| Folder | 30 | Holden, Edward Singleton. Includes letter to Spencer F. Baird, January 31, 1885. | |
| Folder | 31 | Holden, Frank E. | |
| Folder | 32 | Hollister, Ned. | |
| Folder | 33 | Holm, Gerhard. | |
| Folder | 34 | Holmes, Joseph Austin. Includes letter to anonymous correspondent, January 11, 1904. | |
| Folder | 35 | Holmes, William Henry. | |
| Folder | 36 | Holub, Karl. |
Box 9 of 19
| Folder | 1 | Hooker, Joseph Dalton. | |
| Folder | 2 | Hopkins, Archibald. | |
| Folder | 3 | Hopkins, Mark. | |
| Folder | 4 | Horne, John. | |
| Folder | 5 | Hotchkiss, Jed. V. | |
| Folder | 6 | Houghton, Douglass. | |
| Folder | 7 | Hovey, Edmund Otis. | |
| Folder | 8 | Howard, Leland Ossian. | |
| Folder | 9 | Howe, Henry Marion. | |
| Folder | 10 | Howell, Henry Hyatt. | |
| Folder | 11 | Hubbard, Gardiner Greene. Huddleston, Albert. See under Ray S. Bassler. | |
| Folder | 12 | Hudson, George H. | |
| Folder | 13 | Huggins, Sir William. | |
| Folder | 14 | Hunt, Thomas Sterry. | |
| Folder | 15 | Huxley, Thomas Henry. | |
| Folder | 16 | Hyatt, Alpheus. Includes letter to Ferdinand Vandeveer Hayden, April 15, 1876. | |
| Folder | 17 | Iles, Malvern Wells. | |
| Folder | 18 | Irving, Roland Duer. | |
| Folder | 19 | Jackson, Charles Thomas. | |
| Folder | 20 | Jahn, Jaroslav Jilji. | |
| Folder | 21 | James, Uriah Pierson. | |
| Folder | 22 | Jefferson, Thomas. | |
| Folder | 23 | Jenks, John W. P. Includes letter to Spencer F. Baird, November 6, 1875. | |
| Folder | 24 | Jesup, Morris Ketchum. | |
| Folder | 25 | Johnson, John Butler. | |
| Folder | 26 | Johnson, Samuel William. Johnston, Mary Sophia. See under Frederick Eugene Wright. | |
| Folder | 27 | Jones, Thomas Rupert. | |
| Folder | 28 | Jordan, David Starr. Includes letter to William Jones Rhees, January 4, 1886. | |
| Folder | 29 | Julien, Alexis Anastay. Includes letter to George P. Merrill, February 20, 1889. | |
| Folder | 30 | Julien, Jean Baptiste. |
Box 10 of 19
| Folder | 1 | Kaiser, Friedrich Wilhelm Erich. | |
| Folder | 2 | Kaufmann, Rudolf. Keiller, Alexander. See under Norman Levi Bowen. | |
| Folder | 3 | Kellogg, A. Remington. | |
| Folder | 4 | Kemp, James Furman. | |
| Folder | 5 | Kenna, John Edward. | |
| Folder | 6 | Kerr, Washington Caruthers. Includes letter to George P. Merrill, September 23 (?), 1884. | |
| Folder | 7 | Kettner, Radim. | |
| Folder | 8 | Keyes, Charles Rollin. | |
| Folder | 9 | Kiaer, Johan. | |
| Folder | 10 | Kinahan, George Henry. Includes letter to anonymous correspondent, January 17, 1890. | |
| Folder | 11 | Kindle, Edward M. | |
| Folder | 12 | King, Clarence. Includes letters to ? Becker, undated, and Fielding B. Meek, March 9, ?. | |
| Folder | 13 | King, William Bernard Robinson. | |
| Folder | 14 | Klein, Joann Friedrich Carl. Includes a note by Klein, undated. | |
| Folder | 15 | Kluge, Hermann Augustus. | |
| Folder | 16 | Knight, James Brookes. | |
| Folder | 17 | Knowlton, Frank Hall. | |
| Folder | 17A | Kobayashi, Teiichi | |
| Folder | 18 | Koenen, Adolf von. | |
| Folder | 19 | Koken, Ernst. | |
| Folder | 20 | Kolliker, Rudolph Albert von. | |
| Folder | 21 | Koninck, Laurent-Guillaume de. | |
| Folder | 22 | Kunz, George Frederick. | |
| Folder | 23 | Lacaze-Duthiers, Henri de. | |
| Folder | 24 | Lacoe, Ralph Dupuy. | |
| Folder | 25 | Ladd, William. Includes letter to Rev. Elijah Jones, January 13, 1836. | |
| Folder | 26 | Laflamme, Joseph Clovis K. | |
| Folder | 27 | Lane, Alfred. | |
| Folder | 28 | Langley, Samuel P. Includes letter to George P. Merrill, March 27, 1897. | |
| Folder | 29 | Lankester, Edwin Ray. | |
| Folder | 30 | Lapham, Increase Allen. | |
| Folder | 31 | Lapparent, Albert de. | |
| Folder | 32 | Lapworth, Charles. | |
| Folder | 33 | Larsen, Esper Signius, Jr. See also under Ray S. Bassler. | |
| Folder | 34 | Lasaulx, Arnold von. | |
| Folder | 35 | Laufer, Berthold. | |
| Folder | 36 | Lea, Isaac. | |
| Folder | 37 | Lea, Mathew Carey. |
Box 11 of 19
| Folder | 1 | LeConte, John Lawrence. | |
| Folder | 2 | LeConte, Joseph. Lees, George Martin. See under Frederick Eugene Wright. | |
| Folder | 3 | Leidy, Joseph. Includes letters to Spencer F. Baird, October 15, 1883, and James Hall, April 26, 1871. | |
| Folder | 4 | Leith, Charles Kenneth. See also under Norman Levi Bowen. | |
| Folder | 5 | Lesley, John Peter. Includes letters to Ferdinand Vandeveer Hayden, February 17, 1862, April 7, 1866, and December 31, 1878; and Edward V. D'Invilliers to George P. Merrill, July 23, 1906. | |
| Folder | 6 | Lesquereux, Charles Leo. Includes letter to Lester F. Ward, September 30, 1882. | |
| Folder | 7 | Leverett, Frank. | |
| Folder | 8 | Lewis, Henry Carvill. | |
| Folder | 9 | Lewis, James Frederick. | |
| Folder | 10 | Lieber, Francis. | |
| Folder | 11 | Liljevall, Georg. | |
| Folder | 12 | Lindgren, Waldemar. | |
| Folder | 13 | Lindstrom, Gustaf. | |
| Folder | 14 | Linnarsson, Jonas Gustaf Oskar. | |
| Folder | 15 | Linne', Carl von. Lisson, Carlos I. See under Norman Levi Bowen. Little, Otway Henry. See under Norman Levi Bowen. | |
| Folder | 16 | Locke, John, | |
| Folder | 17 | Lockwood, Samuel. | |
| Folder | 18 | Logan, William Edmond. | |
| Folder | 19 | Logan, William Newton. | |
| Folder | 20 | Longchamps, Selys. | |
| Folder | 21 | Longstreth, Miers Fisher. | |
| Folder | 22 | Longwell, Chester Ray. | |
| Folder | 23 | Lotti, Bernardino. | |
| Folder | 24 | Loughlin, Gerald Francis. | |
| Folder | 25 | Lovering, Joseph. | |
| Folder | 26 | Lowe, Ephraim Noble. | |
| Folder | 27 | Lucas, Anthony F. | |
| Folder | 28 | Lull, Richard S. | |
| Folder | 29 | Luther, S. Dana. | |
| Folder | 30 | Lyell, Charles. |
Box 12 of 19
| Folder | 1 | Macfarlane, James. MacGregor, Alexander Miers. See under Ray S. Bassler. | |
| Folder | 2 | Mackie, William. | |
| Folder | 3 | Maclure, William. MacMillan, William Edward Frank. See under Frederick Eugene Wright. MacRobert, Rachel Workman. See under Frederick Eugene Wright. | |
| Folder | 4 | Madigan, Cecil Thomas. | |
| Folder | 5 | Maillard, Gustave. | |
| Folder | 6 | Mall, Franklin Paine. | |
| Folder | 7 | Mallery, Garrick. | |
| Folder | 8 | Malott, Clyde Arnett. | |
| Folder | 9 | Mann, William M. | |
| Folder | 10 | Marble, John Putnam. | |
| Folder | 11 | Marcy, Oliver. Includes letter to Dr. Sheppard, October 7, 1898. | |
| Folder | 12 | Marsh, Othniel Charles. Includes letter to Spencer F. Baird, December 18, 1885. | |
| Folder | 13 | Marshall, Patrick. | |
| Folder | 14 | Martelli, Alessandro. Martin, Edgar Charles. See under Frederick Eugene Wright. | |
| Folder | 15 | Marvine, Archibald R. | |
| Folder | 16 | Mason, Max. | |
| Folder | 17 | Mason, Otis Tufton. Includes letter to George P. Merrill, August 12, ?. | |
| Folder | 18 | Mather, William Williams. | |
| Folder | 19 | Matthew, William D. | |
| Folder | 20 | Mayer, Alfred Marshall. Includes letter to William Jones Rhees, December 8, 1884. Mayo-Smith, Richard. See under Simon Newcomb, folder 2. | |
| Folder | 21 | Mayor, Alfred Goldsborough. McCall, James. See under Ray S. Bassler. | |
| Folder | 22 | McEwan, Eula Davis. | |
| Folder | 23 | McGee, William John. Includes letters to Spencer F. Baird, November 28, 1884; Ferdinand Vandeveer Hayden, December 21, 1877; and, George P. Merrill, January 24, 1885. McMath, John Charles. See under Frederick Eugene Wright. | |
| Folder | 24 | Mearns, Edgar Alexander. | |
| Folder | 25 | Meek, Fielding B. Includes letters to Ferdinand Vandeveer Hayden, December 6, 1855, and February 15, 1876. | |
| Folder | 26 | Meli, Romolo. | |
| Folder | 27 | Meltzer, Samuel Jones. | |
| Folder | 28 | Melville, George W. | |
| Folder | 29 | Mendel, Lafayette Benedict. | |
| Folder | 30 | Mendenhall, Charles Elwood. | |
| Folder | 31 | Mendenhall, Thomas Corwin. | |
| Folder | 32 | Mercalli, Giuseppe. | |
| Folder | 32A | Merriam, John Campbell | |
| Folder | 33 | Merrill, George P. Includes letter to anonymous correspondent, October 20, 1921. | |
| Folder | 34 | Meunier, Stanislas. | |
| Folder | 35 | Miller, Hugh. | |
| Folder | 36 | Miller, Samuel A. | |
| Folder | 37 | Minot, Charles Sedgwick. | |
| Folder | 38 | Miser, Hugh Dinsmore. | |
| Folder | 39 | Mitchell, Elisha. | |
| Folder | 40 | Mitchell, Samuel Latham. | |
| Folder | 41 | Moberg, Johan Christian. |
Box 13 of 19
| Folder | 1 | Moissan, Henri. | |
| Folder | 2 | Montgomery, Thomas Harrison, Jr. | |
| Folder | 3 | Moodie, Roy Lee. | |
| Folder | 4 | Moore, Charles. | |
| Folder | 5 | Moore, Eliakim Hastings. | |
| Folder | 6 | Morgan, Lewis Henry. | |
| Folder | 7 | Morley, Edward Williams. | |
| Folder | 8 | Morse, Edward Sylvester. | |
| Folder | 9 | Morse, Harmon Northrop. | |
| Folder | 10 | Morse, Paul Franklin. | |
| Folder | 11 | Morton, Henry. | |
| Folder | 12 | Mugge, Johann Otto Konrad. | |
| Folder | 13 | Murchison, Roderick Impey. | |
| Folder | 14 | Murray, Sir John. | |
| Folder | 15 | Neff, Peter. | |
| Folder | 16 | Nettelroth, Henry. | |
| Folder | 17 | Neviani, Antonio. | |
| Folder | 18 | Newberry, John Strong. | |
| Folders | 19-20 | Newcomb, Simon. Includes letter to Becker, undated. | |
| Folder | 21 | Newland, David Hale. | |
| Folder | 22 | Newton, Hubert Anson. | |
| Folder | 23 | Newton, Isaac. | |
| Folder | 24 | Nichols, Ernest Fox. | |
| Folder | 25 | Nickles, John Milton. | |
| Folder | 26 | Niggli, Paul. | |
| Folder | 27 | Niles, William Harmon. Includes letter to Ferdinand Vandeveer Hayden, December 21, 1877. | |
| Folder | 28 | Noe, Adolf Carl. | |
| Folder | 29 | Nordenskiold, Nils Adolf Erik. Includes letter to anonymous correspondent, November 9, 1876. | |
| Folder | 30 | Norwood, Charles Joseph. | |
| Folder | 31 | Nuttall, Thomas. |
Box 14 of 19
Obruchev, Vladimir Afanasievich. See under Norman Levi Bowen.
Ockenden, Maurice Albion. See under Norman Levi Bowen.
| Folder | 1 | Oehlert, Daniel P. | |
| Folder | 2 | Olmsted, Denison. | |
| Folder | 3 | Orton, Edward. | |
| Folder | 4 | Osborn, Henry Fairchild. | |
| Folder | 5 | Osburn, Raymond Carroll. | |
| Folder | 6 | Owen, David Dale. | |
| Folder | 7 | Owen, Richard - of Indiana. | |
| Folder | 8 | Owen, Richard - of London. | |
| Folder | 9 | Packard, Alpheus Spring. | |
| Folder | 10 | Palmer, Dorothy Kemper. | |
| Folder | 11 | Palmer, Ernest Jesse. | |
| Folder | 12 | Palmer, Theodore Sherman. | |
| Folder | 13 | Parks, William Arthur. | |
| Folder | 14 | Parry, Charles Christopher. | |
| Folder | 15 | Peale, Albert Charles. | |
| Folder | 16 | Peale, Titian Ramsay. | |
| Folder | 17 | Peary, Robert Edwin. | |
| Folder | 18 | Peirce, Benjamin Osgood. | |
| Folder | 19 | Penck, Walther. | |
| Folder | 20 | Penfield, Samuel Lewis. | |
| Folder | 21 | Pengelly, William. | |
| Folder | 22 | Penrose, Richard Alexander Fullerton, Jr. | |
| Folder | 23 | Percival, James Gates. | |
| Folder | 24 | Perret, Frank Alword. | |
| Folder | 25 | Peter, Robert. | |
| Folder | 26 | Pettee, William Henry. Includes letter to Mr. Dewey, December 20, 1888. | |
| Folder | 27 | Phillips, Alexander Hamilton. | |
| Folder | 28 | Pilling, James Constantine. | |
| Folder | 29 | Pinchot, Gifford. | |
| Folder | 30 | Pirsson, Louis Valentine. | |
| Folder | 31 | Plummer, Frederick Byron. | |
| Folder | 32 | Plummer, Helen Jeanne. | |
| Folder | 33 | Poch, Arturo Bofell y. | |
| Folder | 34 | Poey y Aloy, Felipe. | |
| Folder | 35 | Poincare, Henri. | |
| Folder | 36 | Pompeckj, Josef Felix. |
Box 15 of 19
| Folder | 1 | Posepny, Bergarth Franz. | |
| Folder | 2 | Pourtales, Louis Francois de. | |
| Folders | 3-5 | Powell, John Wesley. Includes letter to Spencer F. Baird, November 23, 1883. | |
| Folder | 6 | Prestwich, Joseph. | |
| Folder | 7 | Prosser, Charles Smith. | |
| Folder | 8 | Prudden, Theophil Mitchell. | |
| Folder | 9 | Pumpelly, Raphael. | |
| Folder | 10 | Rammelsburg, Karl Friedrich. | |
| Folder | 11 | Ramsay, Andrew Crombie. Includes letter to G. F. Becker, October 21, 1895. | |
| Folder | 12 | Ramsay, Wilhelm. | |
| Folder | 13 | Rand, Theodore Dehon. Includes letter to George P. Merrill, November 1, 1888. | |
| Folder | 14 | Ransome, Frederick Leslie. | |
| Folder | 15 | Rath, Gerhard vom. Includes letters to anonymous correspondents, January 17, 1884 and April 10, 1887. | |
| Folder | 16 | Rathbun, Richard. Includes letter to Ferdinand Vandeveer Hayden, April 28, 1878. | |
| Folder | 17 | Ravenel, William deC. Raw, Frank. See under Ray S. Bassler. | |
| Folder | 18 | Redfield, William C. Includes letter to anonymous correspondent, March 11, 1846. | |
| Folder | 19 | Reeside, John B., Jr. | |
| Folder | 20 | Remese, Morice. | |
| Folder | 21 | Repossi, Emilio. | |
| Folder | 22 | Resser, Charles Elmer. | |
| Folder | 23 | Reusch, Hans. Richards, Edwin Percy. See under Ray S. Bassler. Richards, Harold S. See under Norman Levi Bowen. | |
| Folder | 24 | Richardson, Charles Henry. | |
| Folder | 25 | Richarz, Stephen. Richter, Rudolf. See under Norman Levi Bowen. | |
| Folder | 26 | Rinne, Friedrich Wilhelm Berthold. | |
| Folder | 27 | Ritter, Carl. | |
| Folder | 28 | Roberts, Elias H. | |
| Folder | 29 | Robinson, Benjamin Lincoln. | |
| Folder | 30 | Roemer, Ferdinand von. | |
| Folder | 31 | Roepper, Wilhelm T. |
Box 16 of 19
| Folder | 1 | Rogers, Fairman. | |
| Folder | 2 | Rogers, Gaillard Sherburne. | |
| Folder | 3 | Rogers, Henry Darwin. | |
| Folder | 4 | Rogers, William A. | |
| Folder | 5 | Rogers-James Blythe, William Barton, Henry Darwin, and Robert Empie. | |
| Folder | 6 | Romer, Alfred Sherwood. | |
| Folder | 7 | Rominger, Carl Ludwig. | |
| Folder | 8 | Rood, Ogden Nicholas. | |
| Folder | 9 | Rosenbusch, Harry. Includes letter to anonymous correspondent, November 19, 1905. | |
| Folder | 10 | Roth, Santiago. | |
| Folder | 11 | Rothwell, Richard Pennefather. | |
| Folder | 12 | Ruedemann, Rudolf. | |
| Folder | 13 | Russell, Israel C. Includes letter to George P. Merrill, undated. | |
| Folder | 14 | Ruthy, Frank. | |
| Folder | 15 | Ruzicka, Robert. | |
| Folder | 16 | Ryder, John A. Includes letter to George Brown Goode, July 18, 1889. | |
| Folder | 17 | Sabatini, Venturino. | |
| Folder | 18 | Sabine, Wallace Clement Ware. | |
| Folder | 19 | Sahni, Birbal. | |
| Folder | 20 | Sans, M. Faura I. | |
| Folder | 21 | Saporta, Gaston, Marquis de. | |
| Folder | 22 | Sardeson, Frederick William. | |
| Folder | 23 | Sargent, Charles Sprague. | |
| Folder | 24 | Sayles, Robert Wilcox. | |
| Folder | 25 | Schaffer, Franz X. | |
| Folder | 26 | Schmidt, Eduard Oscar. | |
| Folder | 27 | Schmitt, Waldo LaSalle. | |
| Folder | 28 | Schoolcraft, Henry Rowe. | |
| Folder | 29 | Schott, Charles Anthony. | |
| Folder | 30 | Schrader, Franz. | |
| Folder | 31 | Schuchert, Charles. | |
| Folder | 32 | Schweinitz, Emil Alexander de. | |
| Folder | 33 | Schwengel, Jeanne Sanderson. | |
| Folder | 34 | Schwinner, Robert. Scudder, Samuel H. See under Simon Newcomb, folder 2. | |
| Folder | 35 | Sellers, William. | |
| Folder | 36 | Selwyn, Alfred R. C. Includes letter to Spencer F. Baird, July 14, 1885. | |
| Folder | 37 | Shaler, Nathaniel Southgate. Shand, S. James. See under Norman Levi Bowen. | |
| Folder | 38 | Shepard, Charles Upham. | |
| Folder | 39 | Shideler, William Henry. | |
| Folder | 40 | Shinn, William Powell. | |
| Folder | 41 | Shipley, Sir Arthur Everett. | |
| Folder | 42 | Shumard, Benjamin Franklin. | |
| Folder | 43 | Sibley, Sir Franklin. | |
| Folder | 44 | Silliman, Benjamin. | |
| Folder | 45 | Silliman, Benjamin, Jr. Includes letters to Prof. Thaner (?), July 29, 1894 and Fred P. Dewey, March 10, 1882; and C. M. O'Hearn to Edgar Roscoe Cumings, October 17, 1955. Simmons, Herbert Samuel. See under Norman Levi Bowen. | |
| Folder | 46 | Simony, Friedrich. | |
| Folder | 47 | Skinner, John. | |
| Folder | 48 | Slavika, Frantiska. | |
| Folder | 49 | Slocom, Arthur Ware. |
Box 17 of 19
| Folder | 1 | Smillie, Thomas W. | |
| Folder | 2 | Smith, Alexander. | |
| Folder | 3 | Smith, Burnett. | |
| Folder | 4 | Smith, Edgar Fahs. | |
| Folder | 5 | Smith, Erwin F. | |
| Folder | 6 | Smith, Eugene Allen. | |
| Folder | 7 | Smith, George. | |
| Folder | 8 | Smith, John Lawrence. | |
| Folder | 9 | Smith, Stanley. | |
| Folder | 10 | Smith, Theobald. | |
| Folder | 11 | Smith, William. | |
| Folder | 12 | Smithson, James. | |
| Folder | 13 | Smythe, Charles Henry, Jr. | |
| Folder | 14 | Sorby, Henry Clifton. | |
| Folder | 15 | Spallanzani, Lazzaro. | |
| Folder | 16 | Springer, Frank. | |
| Folder | 17 | St. John, Orestes Hawley. Includes letter to Albert Charles Peale, January 25, 1886. | |
| Folder | 18 | Stanton, Timothy William. | |
| Folder | 19 | Statuti, Augusto. Staub, Rudolf. See under Ray S. Bassler. | |
| Folder | 20 | Stearns, Robert Edwards Carter. | |
| Folder | 21 | Stebinger, Eugene. Stebbing, William Pinckard Delane. See under Ray S. Bassler. | |
| Folder | 22 | Stefanini, Giuseppe. | |
| Folder | 23 | Steinmann, Gustav. | |
| Folder | 24 | Stejneger, Leonhard. | |
| Folder | 25 | Stephenson, Lloyd William. | |
| Folder | 26 | Sternberg, George Miller. | |
| Folder | 27 | Stevenson, John James. | |
| Folder | 28 | Stevenson, Matilda Coxe. | |
| Folder | 29 | Stimpeon, William. Includes letter fragment to Ferdinand Vandeveer Hayden, February 28, 1858. | |
| Folder | 29A | Stock, Chester | |
| Folder | 30 | Stockdale, Paris Buell. | |
| Folder | 31 | Stockton, Charles Herbert. | |
| Folder | 32 | Story-Maskelyne, Mervin Herbert Nevil. Includes an undated note. | |
| Folder | 33 | Stratton, Samuel Wesley. | |
| Folder | 34 | Strong, Moses. | |
| Folder | 35 | Stumm, Erwin Charles. | |
| Folder | 36 | Suess, Eduard. Includes a letter to anonymous correspondent, March 14, 1858. Sujkowski, Zbigniew Leliwa. See under Frederick Eugene Wright. | |
| Folder | 37 | Sulc, Jaroslav. | |
| Folder | 38 | Swain, George Fillmore. | |
| Folder | 39 | Swallow, George Clinton. | |
| Folder | 40 | Symes, Richard Glascott. | |
| Folder | 41 | Taramelli, Torquato. | |
| Folder | 42 | Tarr, Ralph Stockman. | |
| Folder | 43 | Tarr, William Arthur. | |
| Folder | 44 | Taylor, Frank. | |
| Folder | 45 | Thevenin, Armand. | |
| Folder | 46 | Thomas, Abram O. | |
| Folder | 47 | Thompson, Zadoc. | |
| Folder | 48 | Thomson, William. | |
| Folder | 49 | Thurston, Robert Henry. | |
| Folder | 50 | Tillyard, Robin John. | |
| Folder | 51 | Tilton, John Littlefield. | |
| Folder | 52 | Torrey, John. |
Box 18 of 19
| Folder | 1 | Trask, John B. | |
| Folder | 2 | Triebel, Erich. | |
| Folder | 3 | Troost, Gerard. | |
| Folder | 4 | Trueman, Sir Arthur Elijah. | |
| Folder | 5 | Trumbull, James Hammond. Includes letter to Henry T. Drowm (?), November 5, 1867. | |
| Folder | 6 | Tuomey, Michael. | |
| Folder | 7 | Twenhofel, William Henry. Tyrrell, George Walter. See under Ray S. Bassler. | |
| Folder | 8 | Ulrich, Edward Oscar. | |
| Folder | 9 | Vallisneri, Antonio. | |
| Folder | 10 | Valpy, Robert Harris. | |
| Folder | 11 | van der Gracht, W. A. J. M. Van Waterschoot. Van Hise, Charles Richard. See under Simon Newcomb, folder 2. | |
| Folder | 12 | Van't Hoff, Jacobus Henricus. | |
| Folder | 13 | Vanuxem, Lardner. | |
| Folder | 14 | Vaughan, T. Wayland. | |
| Folder | 15 | Vincent, Gerard. | |
| Folder | 16 | Vogt, Johan Herman Lie. | |
| Folder | 17 | Vonsen, Magnus. | |
| Folder | 18 | Vrba, Karel. | |
| Folders | 19-20 | Walcott, Charles D. Includes undated letter to George P. Merrill. | |
| Folder | 21 | Walcott, Charles D. (Mrs.) | |
| Folder | 22 | Walker, Thomas Leonard. | |
| Folder | 23 | Wallerius, Johan Gottschalk. | |
| Folder | 24 | Walther, Johannes. | |
| Folder | 25 | Ward, Henry Augustus. | |
| Folder | 26 | Ward, Lester Frank. | |
| Folder | 27 | Washburn, Edward Wight. | |
| Folder | 28 | Washington, Henry Stephens. Watkins, David Edgar. See under Frederick Eugene Wright. | |
| Folder | 29 | Watkins, J. Elfreth. | |
| Folder | 30 | Watson, Thomas Leonard. Includes letter to George P. Merrill, September 30, 1899. | |
| Folder | 31 | Weaver, Charles Erwin. | |
| Folder | 32 | Wehrli, Hans. | |
| Folder | 33 | Weigelt, Jobannes. | |
| Folder | 34 | Weller, Stuart. | |
| Folder | 35 | Welling, James Clarke. Includes letter to George P. Merrill, August 26, 1893. | |
| Folder | 36 | Wells, Horace Lemuel. | |
| Folder | 37 | Wetmore, Alexander. | |
| Folder | 38 | White, Charles Abiathar. | |
| Folder | 39 | White, David. White, Harold J. Osborne. See under Frederick Eugene Wright. | |
| Folder | 40 | White, Maynard Pressley. | |
| Folder | 41 | White, Theodore G. | |
| Folder | 42 | Whiteaves, Joseph Frederick. Includes letter to Charles Schuchert, January 14, 1892. | |
| Folder | 43 | Whitfield, Robert Parr. Includes letter to George P. Merrill, January 16, 1890. Whitfield, Thomas Ward. See under Ray S. Bassler. | |
| Folder | 44 | Whitney, Francis Luther. |
Box 19 of 19
| Folder | 1 | Whittlesey, Charles. | |
| Folder | 2 | Wilczynski, Ernest Julius. | |
| Folder | 3 | Wiley, Harvey Washington. | |
| Folder | 4 | Williams, George Huntington. Includes letters to George P. Merrill, March 5, 1881, July 21, 1893, and April 10, ?. | |
| Folder | 5 | Williams, Henry Shaler. | |
| Folder | 6 | Williams, James Steele. | |
| Folder | 7 | Williams, John Francis. | |
| Folder | 8 | Williams, William Mattieu. | |
| Folder | 9 | Willis, Bailey. | |
| Folder | 10 | Williston, Samuel Wendell. See also under Simon Newcomb, folder 2. | |
| Folder | 11 | Wilson, Alice Evelyn. | |
| Folder | 12 | Wilson, Thomas. Includes letter from George P. Merrill to Wilson, September 12, ?, and Wilson's reply, undated. | |
| Folder | 13 | Wilson, William Powell. | |
| Folder | 14 | Winchell, Alexander. | |
| Folder | 15 | Winchell, Horace Vaugh. | |
| Folder | 16 | Winchell, Newton Horace. Includes letter to the Director of the United States National Museum, November 9, 1885. | |
| Folder | 17 | Wing, Augustus. Includes letter to James Hall, August 27, 1870. | |
| Folder | 18 | Wolff, John Eliot. | |
| Folder | 19 | Woodward, Arthur Smith. | |
| Folder | 20 | Woodward, Harry Page. | |
| Folder | 21 | Woodward, Robert S. | |
| Folder | 22 | Woodward, Samuel. | |
| Folder | 23 | Woodworth, Jay Backus. | |
| Folder | 24 | Worthen, Amos Henry. | |
| Folder | 25 | Wortman, J. L. | |
| Folder | 26 | Wright, Albert Allen. Includes letter to George P. Merrill, November 2, 1892. | |
| Folder | 27 | Wright, Charles E. | |
| Folder | 28 | Wright, Edward Pulteney. | |
| Folder | 29 | Wright, Frederick Eugene. | |
| Folder | 30 | Wright, George Frederick. Wright, James. See under Norman Levi Bowen. | |
| Folder | 31 | Yahe, Hisakatsu. | |
| Folder | 32 | Yeates, William S. Zans, Verners Alexsandrs. See under Ray S. Bassler. | |
| Folder | 33 | Zirkel, Ferdinand. | |
| Folder | 34 | Zittel, Karl Alfred von. |
Contact us at osiaref@si.edu
Revised: June 12, 2003