Harlan Tarbell

Tarbell post-graduate service in magic. Service no. 1.

1930.

Theodore Besterman

Review of Modern Psychic Mysteries book

Journal of the Society for Psychical Research, N. 461, Vol. 26, London gennaio 1930, pp. 10-14.

Theodore Annemann

The Book Without a Name

1931.

Journal of the Society for Psychical Research

Vol. 27, London 1931.

Proceedings of the Society for Psychical Research

Vol. 40, London 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.