The stories in this collection were first published in Argosy magazine on the following dates:
Rain Magic, October 20, 1928
Monkey Eyes Serialized, July 27-August 3, 1929
The Sky’s the Limit Serialized, December 7-December 14, 1929
A Year in a Day, July 19, 1930
The Man with Pin-Point Eyes, January 10, 1931
The Human Zero, December 19, 1931
New Worlds, December 17, 1932