This is a review of number lore by William Wynn Westcott, an esoteric author of the 19th century. Westcott includes information on the Pythagoreans and the Kabbalah. The main portion of this book includes a series of chapters dealing with every-larger numbers, starting with the ‘monad,’ 1. Westcott had a grasp a wide range of occult correspondences, and this short book includes many rare snippets of information.