produced by selection, ii. [200].
Doubleday, H., cultivation of the filbert pine strawberry, i. 354.
Douglas, J., crossing of white and black game-fowls, ii. [92].
Downing, Mr., wild varieties of the hickory, i. 310;
peaches and nectarines from seed, i. 339-340;
origin of the Boston nectarine, i. 340;
American varieties of the peach, i. 343;
North American apricot, i. 344;
varieties of the plum, i. 346;
origin and varieties of the cherry, i. 347-348;