248 



INDEX 



Darwinj ErasmuB, 4, 19 

 Darwin, Robert Waring, 4 

 Davenport, 191 

 Davenport, Prof, and Mrs., 165 

 Deep sea, nutritive chains in, 51 

 Dependence on surroundings, 47 

 Descent and Ascent of Man, 28 ; 



doctrine of, 18, 22 

 Difierential diminution, 231 

 Disease, transmiesibility of, 162 

 Domesticated animals, mutation 



in, 108 

 Domestication and variability, 



14 

 Dominants, 149 

 Drinkwater, 155 

 Drummond on termites, 59 



Earthworms, 5, 6; Darwin's 



book on, 6-8 

 Elimination, discriminate, 84, 



199 ; indiscriminate, 83 

 Engelmann, 197 

 Environment, changes of as a 



cause of struggle, 82 ; and 



function, 168 

 Error, curve of frequency of, 102 

 Escherich, Prof., on termites, 



59,60 

 Eugenic selection, 230 

 Eugenics, 228 

 Eutechnics, 228 

 Eutopias, 228 

 Evening Primrose, 106 

 Evolution idea, 17 ; formula and 



gravitation formula, 26 

 Evolution theory a modal inter- 

 pretation, 19; raw materials 



of, 95-126 

 Evolution of sex, 104 

 Ewart, Prof. Cossar, experiments 



on hybridisation, 147 

 Exclusive inheritance, 146 

 Experimental study, 145 

 Extermination, consequences of, 



64 



Farabee, 155 

 Faraday, 33 

 Fate, struggle with, 13 

 Fellows, struggle with, 12 

 Ferri^re, l^mile, 27 

 Filial Regression, 139 

 Fixity of species, 19 

 Foes, struggle with, 12 

 Forests, destruction of, 62 

 Foster, Sir Michael, 32 

 Friedenthal'stest, 28 



G 



Gager,C. S., 116 



Galapagos Islands, fauna of, 5 



Galton, 4, 30, 105, 131, 134, 139, 



141, 230 

 Gamete, 152 

 Gammarus, 121 

 Geddes, Prof. Patrick, 183, 205, 



228 

 Geographical distribution, 25 

 Geological record, 24 

 Germ-cells, microscopical study 



of, 137 

 Germinal selection, 113 

 Gill-slits, 25 

 Grand'Eury, 204 

 Guinea-worm and Cyclops, 55 

 Gulick,211,212 



Hay craft. Prof. Berry, 219 



Healthful occupations, 229 



Heraolitus, 49 



Heredity = the genetic continu- 

 ity between successive genera- 

 tions, 131 ; methods of study- 

 ing, 136 



Herschel, 102 



Hohnes, Prof. S. J., lOfl 



Homology of forelimbs of verte- 

 brates, 33 



Hormones, 163 



Housefly, 82 



