ers the lacteals, ii. 285.

Asoka, King, patronizes Buddhism, i. 67.

Aspasia, history of, significant, i. 132.

Astrolabe, known to the Saracens, ii. 42.

Astronomical refraction, understood by Alhazen, ii. 46.

Astronomy, primitive, i. 39.
Passes beyond the fetich stage, i. 100.
Of Eratosthenes, i. 199.
How she takes her revenge on the Church, i. 360.
The intellectual impulse makes its attack through, ii. 133.
Affords illustration of the magnitude and age of the world, ii. 278.

Athanasius rebels against the Emperor Constantine, i. 289.
First introduces monasticism into Italy, i. 433.

Athene, statues of, i. 51.

Athens, her progress in art, i. 132,
her philosophy, i. 133.
Her fall, ii. 109.

Atlantic, first voyage across, ii. 162.

Atmosphere, height of, determined by Alhazen, ii. 47.
Effects of light on, ii. 320.
The phenomena and properties of, ii. 367.

Atomic theory, suggested by Democritus, i. 125.

Attalus, King of Pergamus, effect of his bequests to Rome, i. 247.

Attila, King of the Huns, "the scourge of God," invades Africa, i. 350.

Augsburg, Diet of, ii. 211.

Augustine, St., causes Pelagius to be expelled from Africa, i. 294.
Writes the "City of God," i. 301.
Character of that work, i. 304.
Denies the possibility of the Antipodes, i. 315.
His notion of the Virgin, i. 361.
On spontaneous generation, ii. 329.

Auricular confession, introduction of, ii. 65.

"Ausculta Fili," Papal bull of, ii. 83.

Australian, how affected by physical circumstances, i. 26.

Avenzoar, a Moorish writer on pharmacy, ii. 39.

Averroes, of Cordova, the chief commentator on Aristotle, ii. 39.
His theory of the soul, ii. 193.
Confounded force with the psychical principle, ii. 343.
His erroneous view of man, ii. 357.

Avicenna, the geological views of, i. 411.
A physician and philosopher, ii. 39.

Avignon, Papacy removed to, ii. 86.
Voluptuousness of, ii. 95.
Papacy leaves, ii. 96.

Azof, Sea of, dependency of the Mediterranean, i. 28.

Babylonian, extent of astronomical observations, i. 192.

Bacon, Lord, nature of his philosophy, ii. 258.

Bacon, Roger, titles of his works, ii. 120.
Is the friend of the Pope, ii. 132.
His history and his discoveries, ii. 153.

Baconian philosophy, its principles understood and carried into
practice eightee