Arrest of development, ii. [315]-[318].
Arteries, increase of anastomosing branches of, when tied, ii. [230].
Aru islands, wild pig of, i. 67.
Arum, Polynesian varieties of, ii. [256].
Ascaris, number of eggs of, ii. [379].
Ash, varieties of the, i. 360;
weeping, i. 361;
simple-leaved, i. 362;
bud-variation in, i. 382;
effects of graft upon the stock in the, i. 394;