From The Arthur Conan Doyle Encyclopedia
TO THE EDITOR OF THE TIMES.
Sir, — Dr. Haldane claims that telepathy is really the result of subtle sound waves. In very many cases which have been recorded the phenomenon consisted of the reproduction of drawn diagrams. Does Dr. Haldane really consider that the sound of the pencil can indicate the shape of the figure?
ARTHUR CONAN DOYLE.
15, Buckingham Palace-mansions, S.W.1, Dec. 16.