illustrations of, ii. [421]-[428].
Selection, sexual, ii. [75].
Self-impotence in plants, ii. [131]-[140];
in individual plants, ii. [136]-[138];
of hybrids, ii. [174].
Selwyn, Mr., on the Dingo, i. 26.
Selys-Longchamps, on hybrid ducks, i. 190, ii. [46], [157];
hybrid of the hook-billed duck and Egyptian goose, i. 282.
Seringe, on the St. Valery apple, i. 350.
Serpent Melon, i. 360.