louring of, 35, 68, 70

_K. inachis_, 68

Kammerer's experiments on Salamanders, 28

Kant, I., 4, 5, 6, 27, 198, 211, 212, 217, 221, 222

Keane, on the Primates, 138

Keith, on Anthropoid Apes, 138

Kepler, 198

Klaatsch, on Ancestry of Man, 140

Klaatsch and Hauser, 134

Knies, 266

Koelliker, his views on Evolution, 29, 150

Kollmann, on origin of human races, 144

Korschinsky, 31

Krause, E., Foot Note 10, 13

Kropotkin, 214, 275

Lamarck, his division of the Animal Kingdom, 160, 161
--Darwin's opinion of, 129
--on Evolution, 9-14, 21, 25, 171, 172, 173, 179, 180, 201, 202, 253
--on Man, 146, 148, 160, 163
--89, 109, 201, 202, 233

Lamarckian principle, 28, 41-44, 50-54, 67, 84, 86

Lamb, C., 229

Lamettrie, 198

Lamprecht, 260-263

Lanessan, J. L. de, Foot Note 17, 275

Lang, Foot Note 21

Lange, 180

Language, Darwin on, 123, 124
--Evolution and the Science of, 178, 179, 188

Lankester, Sir E. Ray, on degeneration, 268
--on educability, 170, 189

Lankester, Sir E. Ray, on the germ-plasm theory, 150

Lapouge, Vacher de, 270

Lartet, M. E., 189

Lasalle, 266

Laveleye, de, 275

Lawrence, W., 89, Foot Note 65

Lehmann-Nitsche, 138, 144

Leibnitz, 4, 5, 213

Lepidoptera, variation in, 37, 60-63

Lessing, 4, 221

Liddon, H. P., 234

_Limenitis archippus_, 74

Linnaeus, 6

Locy, W. A., Foot Note 15

Lovejoy, Foot Note 56

Lubbock, 125

Lucretius, a poet of Evolution, 4

Lyell, Sir Charles, and Darwin, 23, 116
--the uniformitarian teaching of, 89

Macacus, ear of, 119

Mach, E., 153, 211

Mahoudeau, 137

Maillet, de, 6

Majewski, Foot Note 238, Foot Note 239

Malthus, his influence on Darwin, 16-18, 21, 24, 91
--200, 273

Man, Descent of, 126, 127, 128, 131-145, 156-165, 189, 254, 265
--mental and moral qualities of animals and, 122-126, 164, 188-192
--pre-Darwinian views on the Descent of, 1

Man, Tertiary flints worked by, 136

_Man_, G. Schwalbe on Darwin's _Descent of_, 111-145

Manouvrier, 137

_Mantis religiosa_, colour experiments on, 65, 68

Marx, 262, 276-278

Matthew, P., and Natural Selection, 18, 19

Maupertuis, 6, 88, 103

Mayer, R., 197

_Mechanitis lysimnia_, 77

_Melinaea ethra_, 77

Mendel, 97-100, 184, 228

Merz, J. T., Foot Note 14

Mesopithecus, 132

Mill, J. S., 193, 200, 202, 218

Mimicry, 70-82

Moltke, on war, 273

Monkeys, fossil, 132

Montesquieu, 248

Monticelli, 1