Index 



471 



Error, probable, 50. 

 Evening-primrose (see (Enothera). 

 Evening-primroses, laws of muta- 

 bility of, 72. 



Factor hypothesis, 326. 



Fairchild, Thomas, 110. 



Fertilization, 270. 



Flowers, structure of, 270. 



Fluctuating variations and muta- 

 tions, 54. 



Focke, 232. 



Food supply, as cause of variation, 

 20, 21 ; of different branches, 23. 



Frequency curve, 42. 



Fultz wheat, origin of, 91. 



Galton curve, 326. 

 Gametes, 168, 326. 

 Garden varieties, origin of, 18. 

 Gartner, C. F., 110, 111. 

 Genetics, 326. 

 Genotype, 326. 



Germ-plasm, action of environ- 

 ment upon, 17. 

 Gibb, 258. 



Gideon, Peter M., 233. 

 Gladiolus, 237. 

 Glossary, 325. 

 Gmelin, J. G., 110. 

 Goff, 228, 229. 



Gold Coin wheat, origin of, 91. 

 Gourds, 140. 

 Graft-hybrids, 142. 

 Grain exchanges, council, 310. 

 Grapes, 212, 235 ; hybrid, 133. 

 Gray, Asa, 35. 

 Green, Ira W., 91. 



Hallock & Son, 247. 

 Harper, R. A., 318. 

 Head-to-row, 308. 

 Helianthemum, 73. 

 Henderson, 264. 



Heredity, 149; coefficient of, 152. ; 

 studied collectively, 149. 



Heterozygote, 326. 



History of mutation, 55. 



Homozygote, 326. 



Hopetown wheat, origin of, 91. 



Hurst, 192. 



Husk-tomato pollination, 141. 



Hybridization and asexual prop- 

 agation, 125. 



Hybridized, what plants can be, 

 111. 



Hybrids, 326 ; history of , 1 10 ; defini- 

 tion of, 108 ; influence of sex on, 

 138 ; production of, 101 ; vari- 

 ability of, 122. 



Hyper-chimaera, 148. 



Hypostatic, 326. 



Ideal, 220. 



Illinois Seed Corn Breeders' Associa- 

 tion, 303. 



Immature seeds, 228. 



Implements of pollination, 292. 



Improvement of plants, systematic, 

 295. 



In-breeding, 127. 



Indeterminate varieties, 209. 



Individuality, fact of, 2. 



Individual selection, 308. 



Inhibitor, 180. 



Inter-crossing, swamping effects of, 

 98. 



Ipomceas, 229. 



Kiiishu rice, 313. 



Knight, Thomas Andrew, 110. 



Kohl-rabi, 248. 



Kolreuter, J. G., 110. 



Kumerle, J. W., 265. 



Laboratory exercises, 394. 



Lamark, 59. 



Lemoine, 237. 



Lettuce, improvement in, 221. 



Linaria vulgaris (see toad-flax). 



Linaria vulgaris peloria, 84. 



Linnaeus, 110, 138. 



