This classic book contains four lectures delivered at the twenty-fourth anniversary meeting of the theosophical society at Adyar, Amdras, December 1899, and would make an excellent addition to the bookshelf of anyone with an intrerest in the subject. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.