Tape-worms, [133], [155].

Termites, duration of life of, [18], [40].

Terns’ eggs, [38].

Thuja, dorso-ventral structure of shoots of, [391], [396].

Tillina magna, [118], [148].

Toad, length of life of, [6].

Transmission of acquired characters, [73], [80], [169], [267], [407], [411];

want of evidence of the, [81];

unnecessary for the theory of evolution, [83];

unproved, [105], [142];