Theodosian Code, [260].

Toltecs, [192].

Towns, in the Middle Ages, [329].

Trade,434.

Trade and its social Influence, [104].

Transportation, [102].

Tylor, E. B., Primitive Culture, [114].

Tyndall, John, [471].

Unity of the human race, [66].

Universities, mediaeval, [475]; English, [476]; German, [476]; American, [476]; endowed, [484].