The secret of sex
Subtitle: The discovery of a new law of nature: how sex is caused. Explaining fully: how the Czar of Russia secured a male heir to the throne; how to forecast the sex of the unborn child; how to determine or reproduce either sex at will
Edition: Second Edition, Copyright 1910.
Publisher: Cochrane Publishing Co.
Published: 1910
Place of publication: New York
Language: eng
Number of pages: 64