cultivated species of the orange group, i. 335;

probable Chinese origin of the peach, i. 337;

on the peach and nectarine, i. 340, 342;

varieties of the peach, i. 342;

origin of the apricot, i. 344;

origin and varieties of the plum, i. 345;

origin of the cherry, i. 347;

varieties of the gooseberry, i. 354;

selection practised with forest-trees, i. 361;

wild fastigate oak, i. 361;