Fludd Robert (Latin, DE FLUCTIBUS), an English physician and theosophist, was born at Millgate, in Kent, in 1574. He was educated at Oxford, and afterwards traveled on the Continent, where he became a Rosicrucian (q.v.). Returning to England, he became M.D., and practiced in London, devoting himself also to the study of the natural sciences, in which he showed rare aptitudes. He was also a zealous student of the occult sciences. He died at London September 8, 1637. He was a man of real genius. Kepler and Gassendi thought it worth while to write against him. Fludd's works were published in Latin at Oppenheim, 1617-38, 6 volumes, folio. His Mosaical Philosophy, grounded upon the: essential Truth or eternal Sapience (Lond. 1659, fol.), is translated from the Latin text. See Rich, Biog. Dictionary ; Brucker, Hist. Crit. Philosophic; Wood, Athenae Oxonienses. SEE THEOSOPHY.