- Author: David M. Speaker Author Record # 13172
- Language: English
- Author Tags: element transmutation (1), interstellar communication reciever (1), atomic rays (1), machine men (1), force screen (1), disintegrator rays (1), gene transplants (1)
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Short Fiction
- The Disintegrating Ray (1928)
- The Message from Space (1930)
- The Supermen (1933)