Occult Chemistry was published by Annie Besant and C. W. Leadbeater (Adyar), 1908 and 1919. Eastern philosophy firmly believes that every person has latent psychic powers which developed by yogic training under a qualified Master can equip him with various extraordinary powers or siddhis as they are called. One siddhi is to be able to see the smallest of the small by the naked eye unaided. Annie Besant and Leadbeater, obviously masters of this siddhi, could point with uncanny accuracy to certain findings in the field of atomic structure and nuclear constitution, which decades later experimental scientists endorsed in the main. By any standard, a truly extraordinary achievement! The present book Essentials of Occult Chemistry and Modern Science by Dr H. J. Arnikar, a modern credentialled chemist of acknowleged standing, succinctly presents the remarkable results of the pioneer occult chemists over the period, 1890-1933. The book highlights equally their conformity to or divergences from the findings of modern science. The treatment is as scientifically rigorous as it is warmly appreciative. This book is an imprint of the Theosophical Publishing House, Adyar, and is imported from India.