FAMOUS BRITISH mathematician, for many years Professor of Mathematics at University College, London, for eighteen years secretary to the royal Astronomical Society, author of standard works on
Formal Logic. The Different Calculus, and the Theory of
One of the first British scientists who investigated the phenomena of spiritualism and became convinced of their genuine occurrence.
"I am perfectly convinced", said De Morgan in the Preface of his wife's book
From Matter to Spirit, "that I have both seen and heard, in a manner which should make unbelief impossible, things called spiritual which cannot be taken by a rational being to be capable of explanation by imposture, coincidence or mistake."
In the same year of 1863 he published his work Mind and declared not only that the facts of supernormal occurrences were uncontestable, but he also believed that the hypothesis that explains the facts by intelligence exterior to ourselves is the only satisfactory one.
Source (with minor modifications):
An Encyclopaedia of Psychic Science by Nandor Fodor (1934).