Gruber, Karl (1881–1927)
Professor of biology and zoology at Munich Polytechnic,
Germany, and a noted psychical researcher. Gruber was born
in Freiburg on October 30, 1881. His background in biology
led to an interest in the claims of paranormal abilities in animals.
In 1923 he studied the Elberfeld horses, and later investigated
Rolf, the ‘‘talking’’ dog of Mannheim. He also studied
supernormal phenomena in conjunction with Rudolf Tischner
and Baron Schrenck-Notzing. He did valuable work in the elucidation
of the problem of clairvoyance and psychometry. His
conclusions were detailed in his Parapsychologische Erkenntnisse
(1925) and in a posthumously published volume, Okkultismus
und Biologie.
Gruber, Karl. Okkultismus und Biologie. Munich, 1930.
———. Parapsychologische Erkenntnisse. Munich, 1925.