on the non-variation of weeds, i. 317;

origin of the plum, i. 345;

variation in Pyrus malus, i. 348;

on Viola amœna and tricolor, i. 368;

on reversion in Scotch kail, ii. [32];

fertility of Draba sylvestris when cultivated, ii. [163];

on generally distributed British plants, ii. [285].

Wattles, rudimentary, in some fowls, ii. [315].

Watts, Miss, on Sultan fowls, i. 228.

Webb, James, interbreeding of sheep, ii. [120].