435.

Food, location of animals controlled by, ii. 310.
Its nature, ii. 341.

Force, animal, its source, ii. 339.

Formosus, Pope, converted the Bulgarians, i. 367.

Forms contrasted with law, i. 22.
Introduction of, personified, i. 37.
Fictitious permanence of, successive, i. 104.

Fracasta, an early cultivator of fossil remains, ii. 391.

Francis, St., his early life, ii. 64.
Placed by the lowest of his order in the stead of our Saviour, ii. 83.

Franciscans, higher English, their opposition to Pope Boniface, ii. 83.

Franks Christianized at the end of the fifth century, i. 365.

Fratricelli, their affirmation, i. 283.
Burned by the inquisition for heresy, ii. 79.

Frederick II., Emperor of Germany, birth of ii. 25.
His Mohammedan tendencies, ii. 66.

Free trade, its effects, i. 254.

Freewill not inconsistent with the doctrine of law, i. 21.

Galen, his opinions, i. 259.
His division of physicians into two classes, i. 399.

Galileo, the historical representative of the intellectual
impulse, ii. 134.
Invents the telescope, ii. 261.
Astronomical discoveries of, ii. 261.
Is condemned by the Inquisition, ii. 263.
Publishes "The System of the World," ii. 263.
His degradation and punishment, ii. 264.
His death, ii. 265.
His three laws of motion, ii. 269.
Re-discovers the mechanical properties of fluids, ii. 372, 390.

Geber, or Djafar, the alchemist, discovers nitric acid and aqua
regia, i. 409.

Gelasius, his fearless address to the Emperor, i. 353.

Geminus, an Alexandrian astronomer, i. 202.

Genoa, her commerce, ii. 158.

Genseric, King of the Vandals, invited by Count Boniface into
Africa, i. 327.
Invited to Rome, i. 350.

Geocentric theory, its adoption by the Church, ii. 254.
Important result of its abandonment, ii. 335.

Geographical discovery, effects of, i. 44.

Geography, primitive, i. 39.
Its union with the marvellous, i. 42.
Of Ptolemy, i. 204.
End of Patristic, ii. 164.

Geological movements of Asia, i. 29.

Geology, ii. 294.
Evidence furnished by, as to the position of man, ii. 338.

Gepidae, converted in the fourth century, i. 365.

Gerbert, life of, ii. 4.
His Saracen education, ii. 4.
His ecclesiastical advancement, ii. 5.
Becomes Pope Sylvester II., ii. 6.
Is the first to conceive of a Europea