figure of the hook-billed duck, i. 277.
Albinism, i. 111, ii. [17].
Albino, negro, attacked by insects, ii. [229].
Albinoes, heredity of, ii. [9].
Albinus, thickness of the epidermis on the palms of the hands in man, ii. [297].
Alco, i. 31, ii. [102].
Aldrovandi, on rabbits, i. 104;
description of the nun pigeon, i. 156;
on the fondness of the Dutch for pigeons in the seventeenth century, i. 205;
notice of several varieties of pigeons, i. 207-210;