Darwinism and Human LifeHolt, 1917 - 263 pages |
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acquired characters adaptation Alfred Russel Wallace animals Arthur Thomson Beagle become biological birds body breed called cats clover colour COPEPODS correlation Darwin's day Darwinian depends direction earth earthworms eggs endeavour environment eugenic evidence facts favourable fertilised forms formula gametes germ-cells heredity heritable human humble-bees Huxley idea illustration important individual influence inheritance insects instance interpretation Karl Pearson kind large number larvæ less fit living creatures mackerel mating means Mendelian MENDELIAN INHERITANCE mice mind modifications mutations mutual aid natural selection naturalists normal nurture nutritive chains offspring organic evolution Origin of Species ovum owe to Darwin parasites parents pass peculiarities plants Prof progress PURPLE CLOVER qualities question race raw material Ray Lankester realise recognise regard result ROCK DOVE says scientific mood sifting social spermatozoon stage struggle for existence suggested surroundings survival termites theory things tion varieties Wallace worms