Theodore Annemann

The Book Without a Name

1931.

William M. Endlich

Twenty practical liquid and chemical effects

1931.

Eric F. Impey

Try this one

1931.

Joseph Ovette

Silk creations

1931.

Walter A. Schwartz

Cigam: conjuring, illusions, gimmicks, art, mystery

1931.

Tom Sellers

Sellers' secrets

1931.

Tom Sellers

Magical pleasantries

1931.

Journal of the Society for Psychical Research

Vol. 27, London 1931.

Proceedings of the Society for Psychical Research

Vol. 40, London 1931.

Eduard Conzemius

Hocus-Pocus to keep the people in fear

Ethnographical survey of the Miskito and Sumu Indians of Honduras and Nicaragua, Government Printing Office, Washington 1932, p. 125.