INDEX 



719 



Food, effect of cotton seed on pork, 228; 

 effect of, upon bullfinches, 228 ; effect 

 of, upon body temperature, 230; 

 effect of, upon constitutional vigor, 

 372, 373 ; effect of, upon develop- 

 ment, 370-374; effect of, upon fer- 

 tility, 226 ; effect of, upon functional 

 activity, 96, 97 ; energy of, 229 ; ex- 

 cess of, 227 ; how reduced by living 

 beings, 228; influence of, upon re- 

 generation, 327, 328; upon sex, 631 ; 

 upon variability, 225-230 ; proportion 

 of, used in growth, 225 ; qualitative 

 effects of, 228-230; quantitative ef- 

 fects of, 225-227 ; well-bred races re- 

 quire more, 227. 



Foundation not in a remote female, 



595 59 6 - 



Fraser on efficiency of cows, 78-81. 



Fraternal variability, 500-504. 



Free-martins, 176. 



Frequency, curves, 686-688; distribu- 

 tion, typical, 42 1 ; polygons, 687. 



Frequency distribution and the binomial 

 theorem, 509. 



Functional activity, by suggestion, 243 ; 

 effects of light upon, 241-246; how 

 dependent upon light, 251, 254. 



Functional variation, 75-109; between 

 different individuals of the same spe- 

 cies, 77-91 ; due to light, 239-254 ; of 

 same individual from day to day, 91- 

 94; induced by castration, 100; in- 

 duced by contact, 233-236; induced 

 by external influences, 98, 101-105; 

 influenced by food, 96, 97, 225-230; 

 influenced by gravity, 236-239 ; in- 

 fluenced by hard conditions, 97 ; in- 

 fluenced by the reproductive faculties, 

 100. 



Functions, discharged only in presence 

 of light, 242, 243; exercised under 

 abnormal conditions, 107-109. 



Funk, Deane N., car-load lot of prize- 

 ring grade cattle belonging to, 607. 



Furbringer, studies in birds, 42. 



Galls, 98, 270. 



Gallon, on heredity, 478 ; on law of 

 ancestral heredity, 528 ; on fraternal 

 variability, 500, 501 ; on law of inherit- 

 ance, 193, 194; on studies of stature, 

 481. 



Gametic purity, 521. 



Gemmules, 208. 



Genetic selection, 196-200. 



Gentry, N. H., on inbreeding, 625. 



Geotaxis, 236. 



Geotropism, 236-239 ; in animals, 238 ; 

 of sprout and root, I II. 



Germ, infection of, 185 ; influence of 

 age or staleness upon, 182 ; individu- 

 ality of, 182 ; variations in, are trans- 

 mitted, 348. 



Germ plasm and transmission, 355. 



Germinal selection, 162, 213-215. 



Germinal vesicle, 166. 



Germination, effect of chemicals upon, 

 271. 



Giants, reason for, 27. 



Glands, specific secretions of, 269. 



Goltz, experiments on the dog, 400, 401. 



Gooseberry, evolution of, 130. 



Gorilla, extra incisor in, 49. 



Grading, 602-608 ; advantages of, 604 ; 

 abuse of, 604 ; begin by, to get expe- 

 rience, 606; disadvantage of, 608; 

 disappearance of unimproved blood 

 in, 602. 



Grafting, frog made up of pieces of 

 two individuals, 108; illustrating 

 stability of living matter, 335, 336; 

 mammary gland into ear of guinea 

 pig, 107 ; spur of cock into comb, 

 107 ; two species of animal together, 

 336 ; two pieces of tadpole, 336. 



Graphical representation of statistics, 

 686-690 ; frequency curves, 686-688; 

 frequency polygons, 687 ; graph of 

 mathematical function, 689, 690. 



Gravity, effect of, upon development, 

 239 ; effect of, upon living matter, 

 236-239 ; effect of, upon protoplasm, 

 239 ; effect of, upon regeneration, 

 329-332 ; in struggle with polarity, 



237- 



Great sires, 552 ; the ten greatest, 555. 



Gross on the accessory chromosome, 

 636. 



Grout, A. P., grade Angus steers be- 

 longing to, 605. 



Growth, as influenced by temperature, 

 254-262 ; direction of, due to light, 

 249 ; direction of, influenced by heat, 

 259; geometrical character of cleav- 

 age in, 339 ; retarded by light, 245, 

 246. 



Growth force, 203, 204. 



Guinea pig, grafting mammary gland 

 into ear of, 107 ; supposed trans- 

 mission of mutilations of, 367. 



Habit not the basis of instinct, 401-403. 



Habits, are they transmitted? 363, 

 386-403 ; founded on instincts, not 

 the reverse, 401-403 ; learned from 



