Serres, Olivier de, wild poultry in Guiana, i. 237.
Sesamum, white-seeded, antiquity of the, ii. [429].
Setaria, found in the Swiss lake-dwellings, i. 317.
Setters, degeneration of, in India, i. 38;
Youatt's remarks on, i. 41.
Sex, secondary characters of, latent, ii. [51]-[52];
of parents, influence of, on hybrids, ii. [267].
Sexual characters, sometimes lost in domestication, ii. [74].
Sexual limitation of characters, ii. [71]-[75].
Sexual peculiarities, induced by domestication in sheep, i. 95;