INDEX 



355 



Sweet, 1 1 6, 149 fig.; Types of, 

 in fig., 114; yield per acre, 110. 



Correlation, 18, 244, 258; between 

 color and form, 250; between 

 color and taste, 248; Factors of, 

 304; in agricultural breeding, 

 255 ff.; in fluctuating variabil- 

 ity, 289 ff . ; in panicles of oats, 



. 265; Methodical study of, 271 

 ff. ; of capsules and general de- 

 velopment, 307; within the flow- 

 ers, 250. 



Corylus Avellana laciniata, 7 fig. 



Cross-pollination of corn, 122; of 

 sweet corn, 123 fig. 



Crosses, 316; Accidental, 80; not 

 always successful, 219. 



Crossing, New characters not pro- 

 duced by, 187; New varieties 

 by, 174. 



Culture, Pedigree, 42; Pedigree, 

 of Lamarck's evening primrose, 

 20. 



Currant, California, 184; Color in 

 flowering, 247; Gordon's, 314 

 fig- 316; Hybrid of, 316; Flow- 

 ering, 31 5 fig. ; Yellow, 3 15 fig. 



Dahlia, Fragrant, 224. 



Daisies, Burbank's Shasta, 195 fig.; 

 Shasta, 196, 198 fig. 



Danebrog opium poppy, 319 fig. 



Darwin, Natural Selection discov- 

 ered by, 91; on origin of spe- 

 cies by sports, 6; theory of des- 

 cent, i, 90. 



Datura Stramonium, Color of, 246. 



Datura Tatula, Color of, 246. 



Descent, Darwin theory of, i, 90; 

 Lamarck theory of, i, 90. 



Desert botanical laboratory at Tuc- 

 son, Arizona, 351 fig.; plants, 

 345- 



Detasseling of corn, 140. 



De Vries, Burbank and Shull, 165 

 fig- 



Dewberry, Calif ornian, 186, 187. 



Dipsacus sylvestris, Twisted stems 



of, 1 44 fig- 

 Distribution, and migration, 352; 

 Geographical, of plants, 333 ff. 



Dollo on discontinuous evolution. 



8. 



Dracocephalum moldavicum, u. 

 Drechsler, breeder of cereals, 46. 



Elaeagnus, 185. 



Elodea canadensis, 334. 



Elofson, Work of, 277. 



Environment and characters, 335. 



Epigeia repens, 225. 



Epilobium hirsutum, Elementary 

 forms in, 100. 



Equisetum Telmateja, Twisted 

 stems of, 1 44 fig. 



Eryobothrya japonica, 183. 



Eschscholtzia californica, 234. 



Everlasting, 172. 



Evolution, and mutation, i ff. ; Dis- 

 continuous, 8; Nilsson on slow, 

 14; Theory of, i; Time re- 

 quired for slow, 4. 



Fasciations, 144, 293. 

 Fertilization of corn, 122, 151; of 



evening primroses, 252. 

 Figwort, Seedling-plants of, 295 



fig. 



Flag-oats, Svalof, 76 fig. 

 Flax, Correlations in, 258. 

 Flowers, Berries and, 244; of 



corn, 1 19 fig.; Varieties of fruits 



and, 178. 

 Fluctuation, 5. 



Fouquieria splendens, 351 fig. 

 Frit-fly, 264. 

 Fruits and flowers, Varieties of, 



178. 



Fruwirth, Work of, 294. 

 Funk Brothers Seed Company, 



breeders of corn, 132. 



Garden, Experiment, at Amster- 

 dam, 1 5 fig.; 143 fig. ; 323 fig.; 

 of Luther Burbank, 163 fig. 



Geographical distribution of plants 

 333 ff. 



Germination and size of seeds, 

 261; of clover, Hastening of, 

 262. 



Golden Drop Wheat, 44. 



Grading selected plants, 288. 



