The subject of Talismans and Gems of the Zodiac covers a wide area, and the difficulty of arriving at a definite conclusion is increase became of the varying opinions between writers on these subjects as to the stones referred to, or intended by the Ancients, complicated still further by the different languages from which these records have been translated, and where Month or Zodiacal gems are referred to many of the writers arc obviously unacquainted with Astrology or Astronomy. The present volume, being the result of many years of study and research, it is not easy in all cases to specify the original source of our information, which has been collected, not only from ancient and modern writings, but also from personal experience and experiments, noted at the time they occurred, long before this book was contemplated