Theosophy

In 1875 Helena Blavatsky (1831-1891) and others founded The Theosophical Society.

Critical History

Peter Washington, Madame Blavatsky's Baboon: A History of the Mystics, Mediums, and Misfits Who Brought Spiritualism to America (Schocken, 1995).
Michael Barker, "The Roots Of Theosophy", Swans Commentary, July 2, 2012. (A summary of Madame Blavatsky's Baboon)

Matthew Lasar, Pacifica Radio: The Rise of an Alternative Network (Temple University Press, 2000), pp.29-32.
June O. Leavitt, The Mystical Life of Franz Kafka: Theosophy, Cabala, and the Modern Spiritual Revival (New York: Oxford University Press, 2012). Review

Carla Risseuw, "Thinking Culture Through Counter-culture: The Case of Theosophists in India and Ceylon and their Ideas on Race and Hierarchy (1875-1947)" in Antony Copley, ed., Gurus and Their Followers: New Religious Reform Movements in Colonial India (Oxford University Press, 2000), 180-205.
Gauri Viswanathan, "Conversion, Theosophy, and Race Theory" in Viswanathan, Outside the Fold: Conversion, Modernity, and Belief (Princeton University Press,1998), 177-207.
Colin Kidd, "Theosophy" in Kidd, The Forging of Races: Race and Scripture in the Protestant Atlantic World, 1600-2000 (Cambridge University Press, 2006), 237-46.
Herman de Tollenaere, The Politics of Divine Wisdom: Theosophy and Labour, National, and Women's Movements in Indonesia and South Asia, 1875-1947 (Uitgeverij Katholieke Universiteit, 1996).
Isaac Lubelsky, "Mythological and Real Race Issues in Theosophy" in Olav Hammer and Mikael Rothsein, eds., Handbook of the Theosophical Current (Brill 2013), 335-55.