——, sudden extinction of, [321].
Troglodytes, [243].
Tucutucu, blind, [137].
Tumbler pigeons, habits of, hereditary, [214].
——, young of, [446].
Turkey-cock, brush of hair on breast, [90].
Turkey, naked skin on head, [197].
——, young, wild, [216].
Turnip and cabbage, analogous variations of, [159].
Type, unity of, [206].