Ellis Stanyon

Magic

Vol. 12, N. 3, Pollock & co., London 1911.

Abbott Handerson Thayer

Concealing Coloration

The Auk, Vol. 28, American Ornithologists' Union, gennaio 1911, pp. 146-148.

Thomas Barbour e John C. Phillips

Concealing Coloration Again

The Auk, Vol. 28, American Ornithologists' Union, aprile 1911, pp. 179-188.

Abbott Handerson Thayer

Concealing coloration

Popular Science Monthly, Vol. 79, The Science Press, New York giugno 1911, pp. 20-35.

Joel Asaph Allen

Revealing and Concealing Coloration in Birds and Mammals

The Auk, Vol. 28, American Ornithologists' Union, ottobre 1911, pp. 472-480.

Abbott Handerson Thayer

Concealing-Coloration: A Demand for Investigation of My Tests of the Effacive Power of Patterns

The Auk, Vol. 28, American Ornithologists' Union, ottobre 1911, pp. 460-464.

David Phelps Abbott

Behind the Scenes With the Medium

The Open Court Publishing, Chicago 1912 (I ed. 1907).

Georgius Agricola

De re metallica

The Mining magazine, London 1912.

Proceedings of the Society for Psychical Research

Vol. 26, London 1912.

Proceedings of the American Society for Psychical Research

Vol. 6, 1912.