Goodspeed, T. H., 26. Grabau, Amadeus, Wm., 335. Grassi, B., 66. Gray, Henry, 299. Gregory, W. K., 270, 309, 310, 311, 318, 348. Grignard, Victor, 209. Gruender, Hubert, 233 note. Gummersbach, Joseph, 247 note. Guyer, M. F., 15, 266. Haacke, Joh. Wilh., 275, 317. Haeckel, Ernest, 33, 48, 89, 138, 186, 237, 275, 277, 278, 345. Hamann, Joh. Georg, 149. Handlirsch, Anton, 115. Hartmann, Karl Robert Eduard von, 358. Harvey, William, 155. Haswell, Wm. A., 316, 317. Hauser, O., 329. Hayes, Charles Willard, 107 note. Heilprin, Angelo, 120, 121. Heim, Albert, 107 note. Helmholtz, Herman von, 182, 298. Henderson, Lawrence J., 6, 153, 175, 176, 179. Hertwig, Oskar, 284. Hertwig, Richard, 315. Holmes, Oliver Wendell, 127. Holworth, Sir Henry, 98. Horace, 54, 109. Howe, John Allen, 104, 105. Howell, Wm. H. 299. Hrdlička, A., 316, 318, 319, 322, 323, 325, 328, 329, 331, 332. Hubrecht, Ambrosius Arnold William, 309, 317. Hume, David, 198. Huxley, Thomas H., 20, 67, 76, 98, 111 note, 236, 237, 314, 325, 333. Jaggar, T. A., Jr., 346, 347, 348. James, William, 205, 206, 212, 249. Jennings, H. S., 250. Johnson, Dr. George, XVI. Jordan, David Starr, 4, 18, 28. Jörgensen, J., 146, 147. Judd, J. W., 94. Kammerer, Paul, 14, 266. Kant, Immanuel, 198. Keen, W. W., 48. Keith, Arthur, 319, 322, 328, 332, 336, 337. Kellogg, Vernon I., 46 note, 53 note, 350, 351. Kerr, J. Graham, 280, 282, 284. Keyser, C. J., 204. Kidd, F., 146. Klaatsch, A., 308, 309, 312, 317, 326, 328, 330. Koenen, C., 326. Kofoid, Charles A., 118, 162. Kohlbrugge, J. H. F., 274, 275, 277, 285, 308. Kölliker, Rudolph Albert, 7. Kollman, Julius, 285, 286, 317. Kramberger, K. Gorjanović, 320, 333. Lamarck, Jean Baptiste, 8, 9, 16, 30, 32, 65, 286, 290. Lankester, E. Ray, 186. Laplace, Pierre Simon, 181. Lebedeff, 183. Le Conte, Joseph N., 345. Lee, 333. Leydig, Franz, 137. Linné, Carl von, 4. Loeb, Jacques, 159, 249, 250, 252, 264. Lohest, Maximin, 326. Lotsy, J. P., 25. Lucretius, 30. Lull, Richard S., 115. Macalister, R. A. S., 342. MacCurdy, George Grant, 317, 326, 329, 331, 332. MacDowell, E. C., 266. MacManus, T., 359. Macnamara, N. C., 314, 325. Manouvrier, L., 316, 333. Marx, Karl, 360. Mathews, Albert, 293, 294, 302. Maxwell, J. Clerk, 183. McCann, Alfred W., 31, 32, 33, 34, 47, 50, 51. McConnell, R. G., 107, note, 109. McGregor, J. H., 315, 316, 317, 320, 322. Melanchthon, Phillip, 197. Mendel, Gregor Johann, 3, 24, 27, 28, 32. Mendeléef, Dimitri Ivanovitch, 56. Mercier, Désiré Cardinal, 204, 205, 208. Meyer, Ludwig, 302, 324. Michael Angelo, 257.