INDEX 



Abies, VIII, 140, 161, 164 

 Abundance plum. III, 117, 339; 



renamed, IV, 166 

 Acacia, I, 100; VIII, 171 

 Achieving the Impossible — 



The Plxtmcot, IV, 181-207 

 Acorn squash, V, 113 

 Acquired traits, transmission 



of, VII, 364-368 

 Adaptation, of plants, I, 46; 

 struggle to secure, I, 136; 

 the forward march of, I, 117- 

 173; of pears, I, 160; of arti- 

 chokes, I, 167; of celery, I, 

 167; of lettuce, I, 167; of 

 oranges, I, 167 

 Aerial potatoes, V, 180-182 

 Afluiities, plant, II, 213-233; 

 founded on cousinship, II, 

 220-223 

 African daisy, orange, a sun- 

 loving flower, I, 182; history 

 of, I, 210; evolution of, inter- 

 rupted, I, 211; characteristics 

 of, VI, 319 ; variation in color 

 of, VI, 327-331 

 Agrippina rose, VI, 238 

 Aid from nature, IV, 82-85 

 Air, how plants use, V, 79-83; 

 necessary to plant grovrth, 

 VII, 275; must circulate 

 among roots, VII» 2S3j in the 

 soil, VII, 309 

 Air drainage, of trees. III, 121 

 Alaskan strawberries, IV, 279 

 Alder, VIII, 171 

 Alexander apple, seedlings 

 from. III, 221 



Alfalfa, finds in man a friend,!, 

 151 ; characteristics, VI, 35-37 



Algae family, shows great adapt- 

 ability, I, 85 



Alkali bath, IV, 35, 38-39 



Alkaloids, from trees, VIII, 

 142 



Alliance, between insect and 

 flower, II, 237 



Allied species, protoplasm of, 

 II, 225 



Allium, varieties of, V, 195-197 



Almond and Its Impeovement, 

 VII, 323-346 



Almond, II, 45; III, 83, 205; 

 IV, 67; VII, 323-346, 331- 

 341; VIII, 18-19, 257-259 



Almond-nectarine, VII, 333 



Almond orchards, cross-fertili- 

 zation necessary, VII, 343 



Almond-peach hybrids, VII, 

 335-341 



Almond-plum hybrid, VII, 323, 

 328-329 



Aloes, I, 85 



Aloysia citriodora, VII, 172 



Alstrcemeria, experimenting 

 with, V, 278, 279 



Amaranthus, as a weed, VII, 

 294 



Amaryllis, I, 234; V, 278; VI, 

 251-278; VII, 315; VIII, 307 



Amaryllis and Jacobean lily, 

 hybrids from, VI, 273 



Amber sugar canes, related to 

 Orange sugar canes, VI, 81 



America, the melting pot of na- 

 tions, VIII, 372-374 



391 



