The Variation of Animals and Plants Under Domestication, Volume II (of 2)

by Charles Darwin

variety of the apple not attacked by coccus, i. 349;

intercrossing of strawberries, i, 351, 352;

broad variety of the cock's comb, i. 365;

bud variation in the cherry and plum, i. 375;

crossing of white and purple grapes, i. 393;

experiments in crossing apples, i. 402, ii. [129];

hereditary disease in plants, ii. [11];

on interbreeding, ii. [116];

crossed varieties of wheat, ii. [130];

necessity of intercrossing in plants, ii. [175];