358.
His impression of the personal appearance of the Saviour, i. 361.

Testimony, human, value of, ii. 119.

Tetractys, the number "ten," why so called, i. 114.

Tezcuco, description of, ii. 178.

Thabor, mysterious light of, ii. 59.

Thales, philosophy of, i. 95.

Thaumasius, the name of Ammonius changed to, i. 322.

Theatre, the English, ii. 245.

Thebit Ben Corrah determines the length of the year, ii. 41.

Theodora, Empress, restores image-worship, i. 421.

Theodoric, the Ostrogoth, effect of the conquest of Italy by, i. 353.
The change in his policy, i. 353.

Theodorus, Bishop his tongue cut out, i. 378.

Theodosius, Emperor, fanaticism of, i. 312.
His cruel vengeance at Thessalonica, i. 313.
His acts, i. 317.
Orders the Serapion to be torn down, i. 319.

Theodosius, an Alexandrian geometrician, i. 204.

Theon, an Alexandrian geometrician, and father of Hypatia, i. 204, 322.

Theophilus, Archbishop of Alexandria, his character, i. 317.
Cause of his umbrage at the Serapion, i. 318.
Persecutions of, i. 319.

Theophilus, Bishop of Antioch, first introduced the word
"Trinity," i. 273.

Theophilus, Emperor, image-worship restored at his death, i. 421.
His surly and insolent reply to Almaimon, ii. 40.

Theosis, its meaning as employed by John Erigena, ii. 9.

Therapeutae, early Egyptian hermits, i. 424.

Thermotics, science of heat, ii. 383.

Thessalonica, massacre at, i. 313.

Thomas a Kempis, the reputed author of "The Imitation of
Christ," ii. 196.

Thought, confounded with sensation by Democritus, i. 125.
Variation of human, ii. 205.

Thucydides, his secret disbelief of the Trojan war, i. 49.

Thuringians converted in the seventh and eighth centuries, i. 365.

Tides and currents explained on the theory of gravitation, ii. 371.

Time, nothing absolute in, i. 17.

Torricelli, weight of atmosphere understood before, ii. 47.
Hydrostatics created by, ii. 285.
Constructs the barometer, and demonstrates the pressure of
the air, ii. 390.

Toscanelli, a Florentine astronomer, and friend of Columbus, ii. 160.
Constructs his gnomon in the Cathedral of Florence, ii. 255.

Tours, battle of, i. 368.

Trade-wind, under the dominion of law, i. 4.

Transformation, the world is undergoing unceasing, i. 59.

Transitional forms, nature of, i. 12.

Transmigr