INDEX 



249 



Hudson, W. H., 78, 79, 90 



Human life, relation of to muta- 

 tion, 123 



Human race and animal world, 

 contrast between, 214 



Huxley, 33, 37, 38, 41, 48, 139 



Increase, rate of, 82 



Infection of offspring before 



birth, 100 

 Inheritance, facts of, 129-177 

 Intelligence, liberation of, 29 

 Interrelations, 35 

 Isolation, 210 



Jenkin, Prof. Fleeming, 99 

 Jordan,211.212, 224, 225 



K 



Kammerer, experiments with 



salamanders, 164 

 Kropotkin, 84, 89 



Laissez-faire position, 217 



Lamarck, 19, 99 



Lamarckian view of transmissi- 



bility of acquired characters, 



118, 120 

 Lankester, Sir E. Bay, 71, 205, 



217 

 " Law of Parsimony," 6, 167 

 Lemmings, march of, 81 

 Leptinotarsa, variations in, 115 

 Loeb, 122 



Lucas, Prosper, 130, 140 

 Lyell, 5 



M 



MacDougal,D. T., 116 

 Maogillivray, 91 



Mackerel and sunlight, SO 



Malthus, 71, 181 



Marchal, 122 



Marshall, Prof. A. Milnes, 25, 59 



Mendel's Law and Galton's Law, 

 157 



Mendelian inheritance, 148, 154 



Mendelism, 107, 135 ; practical 

 importance of, 165 



Mivart, 109 



Modifications, 118 ; indirect im- 

 portance of, 119, 169 ; second- 

 ary effects of, 161 ; transmis- 

 sibility of, 157 



Mongoose in Jamaica, 65 



Moral character, inheritance of, 

 175 



Morgan, Prof. Lloyd, 31, 119, 

 125, 169, 210 



Morgan, T. H., 31 



Mouse, sand-coloured variety of, 

 17 



Mud and clear thinking, 49 



Miiller, Fritz, Facts for Darwin, 

 25 



Mutation, Darwin's position in 

 regard to, 110; theory of, 106 



Mutations of Evening Primrose, 

 22 



Mutual aid, Kropotkin on, 89 



N 



Nageli, 160 



Napoleon, effects of his wars, 226 



Natural selection, 15 ; the theory 

 of stated, 187 ; illustrations of 

 the theory of, 190 ; objections 

 to the theory of, 192 ; evi- 

 dences of, 198 ; efficacy of, 

 201 ; in human life, 215 



Naturalist's problems formula- 

 ted, 59 



" Nature " and " Nurture," dis- 

 tinction between, 131 



"Nature," 173,176 



Neo-Lamarckians, 166 



Nettleship, 155 



Night-blindness, 156 



