dimorphism in the polyanthus and primrose, ii. [21].
Darwin, Dr., improvement of vegetables by selection, ii. [204].
Darwin, Sir F., wildness of crossed pigs, ii. [45].
D'Asso, monogynous condition of the hawthorn in Spain, i. 364.
Dasyprocta aguti, ii. [152].
Date-palm, varieties of the, ii. [256];
effect of pollen of, upon the fruit of Chamærops, i. 299.
Datura, ii. [38];
variability in, ii. [266].
Datura lævis and stramonium, reversion in hybrids of, i. 392.