feeding of, [245].

Ants, [194]-209.

Anti-toxin, [280].

Bacteria, [31], [38], [71], [141];

and disease, [266] and following, [274] and following.

Bean, [20]-23, [146].

Bee, [70], [71].

Birds, instincts of [96]-98;

lizard-like, [351].

Blind spot, [186]-188.