Transmutationism, [242].

Trevelyan, Sir J. Peacock, [100].

Trilobites, [135], [141], [171].

Tunicaries, [81].

Turbot, [37].

Turkey, effects of climate on, [100].

Turkish dog, [45].

Two-gilled cephalopods, [76].

Type, conformity to, [241].

U.