INDEX 



271 



Forbes, S. A., quoted, 167 

 Forests, excite feeling, 36 

 Forms of Flowers, dedicated 



to Asa Gray, 29 

 Fortuitous variation, 226 

 Freshwater fishes, 184 

 Fbeud, 258 



Gage, S. H. and S. P., experi- 

 ments, 121 



Gager, C. S., experiments with 

 radium, 128, 138 



Galileo, effect of teaching, 55 



Galls, vegetable, 131 



Galton, F., effect of Origin, 

 52; experiments on pangen- 

 esis, 145 



Gartxer, hybridization, 52, 53 



Gaudrt, 215 



Geminate species, 81 



Gemmules, 95, 96 



" Genesis of Species," 32 



Genetic synthesis in psychology, 

 253 



Geographic convergence, 199, 

 201; distribution, 73; varia- 

 tion, 181, 196-198 



Geologic convergence, 200, 201 



Germ-plasm, continuity of, 35, 

 40; influence of soma on, 120 



Goats, 164 



Gooseberry, cessation of varia- 

 tion, 176 



GosSE, p.. Omphalos, 16, 16 



Graduated tharacters, 127 



Gray, A., defense of Darwin, 

 8; friendship with Darwin, 

 26-29; Darwin's opinion of, 

 26; correspondence with Dar- 

 win, 31, 44 



Gregory, W. K., 243 



Grove, I3r., interviews Tenny- 

 son, 15 



Guinea-pig, 148, 149 



GtTLicK, J. T., 193 



Guhk-ey, E., letter of Darwin 

 to, 35 



Guthrie, C. C, experiments, 

 205 



Gymnosperms, phylogeny, 60; 

 evolution without utility, 66 



Haeckel, E., on pangenesis, 40 

 Hair, 151, 170 



Hall, G. Stanley, address by, 

 251-267 



Hall, James, the fossil record, 9 



Hallett, cessation of improve- 

 ment in wheat, 48 



Hellpach, 259 



Hesthey, 19 



Henslow, J. S., friendship with 

 Darwin, 11; opinion of Lyell's 

 Geology, 12; letter of Darwin 

 to, 36 



Heredity (see also Inheritance), 

 chemical nature of, 110; and 

 memory, 112; determination 

 of, 114; unit characters in, 

 143-159; of mutations, 171; 

 factor of evolution, 244 



Herixg, on heredity, 39 



Hertwig, O., the nucleus in 

 heredity, 99 



Hilgexdorf, work of, 214 



Hofmeisteh, on plant relation- 

 ships, 57 



Hooker, Sir Joseph, defense of 

 Darwin, 8; advice asked by 

 Darwin, 18; presents papers 

 of Darwin and Wallace, 18, 

 19; utility, 25; friendship with 

 Darwin, 25, 26; letter of Dar- 

 win to, about Mivart, 32; 

 about pangenesis, 39; about 

 limits to artificial selection, 

 48; coral reefs, 46; letters 

 from Darwin, 51, 94, 131 



Hooker, Sir William, letter 

 from Burchell to, 38 



Hormones, 106, 109, 112 



Horns, 147, 164, 170, 240, 247 



Horner, L., letter to, 12 



Horse, 175 



Humboldt, Darwin on, 36 



Huxley, T. H., 215, 224; letter 

 of Darwin to, 10; friendship 

 with Darwin, 29; reviews 

 Origin, 33; effect on study 

 of biology, 53; on coming of 

 age of tiie Origin, 54; op- 

 posed to pangenesis, 93 



Hyatt, A., controversy with 

 Darwin, 9; the fossil record, 

 9; work of, 212, 213, 231 



Hybridity, and selection, 52; 

 characters swamped by, 141, 

 179 



