"twin cluster pippins," i. 349;
varieties of the apple, i. 350;
on strawberries, i. 351, 353;
fruit of the wild gooseberry, i. 355;
effects of grafting upon the seed, ii. [26];
diseases of plum and peach trees, ii. [227]-[228];
injury done to stone fruit in America by the "weevil," ii. [231];
grafts of the plum and peach, ii. [259];
wild varieties of pears, ii. [260];
varieties of fruit-trees suitable to different climates, ii. [306].