Author List: I
Incognito, Magus; William Walker Atkinson: The Secret Doctrine of the Rosicrucians [1918]
Indiopleustes, Cosmas; J. W. McCrindle: Christian Topography [1897]
Ingersoll, Ernest: Dragons and Dragon Lore [1928]
Ingersoll, Robert G.: Volume I: Lectures
Ingersoll, Robert G.: Volume II: Lectures
Initiates, Three; William Walker Atkinson: The Kybalion [1912]
Iqbal, Muhammad; Reynold A. Nicholson: The Secrets of the Self [1920]
Irenaeaus; Justin Martyr: Ante-Nicene Fathers, Vol I [1847-50]
Ithel, J. Williams Ab; Iolo Morganwg: The Barddas, Vol. I [1862]
Ithel, J. Williams Ab; Iolo Morganwg: The Barddas, Vol. II [1874]