Agassiz, Louis, 35, 37, 50, 320. Anderson, 225. Anonymus, "the Unconscious," etc., 128, 129, 131, 134, 159. Anonymus, "Vestiges," etc., 33. Argyll, Duke of, 50, 91, 92, 135, 172, 202, 288. Ausland, 159, 240, 281. Baer, Karl Ernst von, 36, 54, 56, 71, 74, 81, 83, 106, 132, 149, 160, 177, 226, 259, 281, 288, 320. Barrande, 54. Baumgaertner, Heinrich, 57, 176. Blanchard, Emil, 54, 106. Bleek, Wilhelm, 17, 96, 97, 194, 197, 234, 236. Boerhave, 36. Braubach, 226. Braun, Alexander, 55, 176, 226, 246, 397. Braun, Julius, 17. Buch, Leopold von, 52. Buckle, 17. Buechner, Ludwig, 42, 118, 141, 158, 188, 205, 219, 233, 396. Buffon, 31. Carneri, 203, 238. Carns, 36. Christy, 90. Condillac, 96. Cotta, Bernhard von, 51. Curtius, 96. Cuvier, 31, 32, 34, 37, 320. Darwin, 17, 18, 25, 27, 38, 118, 171, 177, 217, 240, 320, 389. Descartes, 127. Dillman, 295, 301. Dohrn, 84. DuBois-Reymond, Emil, 124, 125, 127, 130, 134, 149. Ebrard, 159, 209. Ecker, 56. Escher, von der Linth, 54. Farrar, 96. Fechner, Gustav Theodor, 135, 146. Fichte, Immanuel Hermann, 142, 175. Fraas, Oskar, 55, 90. Frohschammer, 175. Gegenbaur, 56. Geiger, Lazar, 17, 96. Geoffrey St. Hilaire, Etienne, 32, 34. Gerhard, 197. Giebel, 54. Goeppert, 54. Goethe, 33, 34, 35, 320. Gray, Asa, 222. Grusebach, 55. Grimm, Jacob, 17, 95. Haeckel, 35, 42, 43, 45, 75, 78, 106, 123, 130, 133, 149, 159, 160, 166, 170, 204, 219, 234, 237, 281, 395. Hartmann, Eduard von, 56, 60, 106, 131, 142, 168, 176, 191, 205, 334, 376. Heer, Oswald, 56, 176. Hegel, 126, 136, 204. Helmholtz, 136, 159. Heyse, 96. Hilgendorf, 82. His, Wilhelm, 56, 81, 106. Huber, 175. Humboldt, Wilhelm von, 17, 95. Huxley, Thomas, 42, 50, 177, 198, 222, 279. Jaeger, Gustav, 51, 124, 214, 243. Jellinghaus, 94. {15} Kant, 195, 282. Keim, 18, 337. Koelliker, 56, 81, 176. Koestlin, Julius, 175, 187. Koestlin, Otto. 149. Kowalewsky, A., 42. Kowalewsky, W., 83. Kurz, Johann Heinrich, 306. Lamarck, 27, 30, 31, 33, 320. Lang, Heinrich, 197, 210. Lange, Friedrich Albert, 112, 168, 173, 176, 194, 196. Lartet, 96. Leibnitz, 127, 217. Leidy, 83. Lessing, 405, 407. Linnaeus, 30. Livingstone, 93. Lotze, 142, 145, 149. Lubbock, Sir John, 18, 91, 93, 242. Lyell, Sir Charles, 18, 36, 55, 89, 90, 222. Maedler, 177, 252. Malthus, 39. Marsh, 83. Martensen, 187. Mayer, Robert von, 37, 129, 149, 155. McCosh, 224. Mill, John Stuart, 242. Mivart, 55, 106, 223, 245. Moleschott, 42. Mueller, Fritz, 79. Mueller, Max, 18, 96, 98. Murchison, Sir Roderick, 54. Naegeli, 56. Nitzsch, Karl Immanuel, 361. Noire, Ludwig, 281. Oken, 34, 320. Owen, Richard, 35, 56, 164, 176, 221, 223, 320. Peschel, Oskar, 279. Pfaff, 54. Pfleiderer, Otto, 187. Planck, Carl Ch., 105, 110. Preyer, 136, 146, 153.