By R. Clay Jackson. Cloth. Price, $5. Pp. 205, with illustrations. Tacoma: The Author, 1926.
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The author is under the peculiar delusion that he has proved that exposure to sunlight is the determining factor in establishing the sex of the progeny, the mother lending the factors for femaleness and the father the factors for maleness. He presents evidence principally in the form of weather charts and statistics gathered without the slightest scientific attempt to control the observations. The book is published by the author, presumably at his own expense. It is miserably printed, bound in an ornamental cover, and is quite unconvincing.
The Cause and Control of Sex in Human Offspring.. JAMA. 1927;88(9):671. doi:10.1001/jama.1927.02680350055038