Occult Chemistry: Investigations by Clairvoyant Magnification into the Structure of the Atoms of the Periodic Table and Some Compounds (originally subtitled A Series of Clairvoyant Observations on the Chemical Elements) is a book written by Annie Besant and C.W.

[1][2] Since the first edition was published in 1908, the book is in the public domain, and available in whole or in excerpts, on many sites on the internet.

[3] Occult Chemistry states that the structure of chemical elements can be assessed through clairvoyant observation with the microscopic vision of the third eye.

"The book consists both of coordinated and illustrated descriptions of presumed etheric counterparts of the atoms of the then known chemical elements, and of other expositions of occult physics.

"[5] Academic criticism is available in Chapter 2 of Modern Alchemy: Occultism and the Emergence of Atomic Theory,[6] and in an online article from the Chemistry department at Yale University.