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October 8, 1904


JAMA. 1904;XLIII(15):1067-1068. doi:10.1001/jama.1904.02500150049008

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There is nothing new in the fact that the determination of sex in some of the lower forms of animal life can be brought about by certain modifications of nutrition. It was discovered by the bee savants many years ago, and they and their relatives and descendants have made practical application of the discovery ever since. There would be nothing extraordinary or excessively startling if we should find out that we could experimentally produce similar results in other forms of animal life not more highly organized than the bees. The statement alleged to be made by the distinguished California biologist. Professor Loeb, that "science is now able to control the sexes, saying whether or not the newly generated body shall be male or female," can hardly refer alone to such matters of ancient history as the determination of sex in the lower organisms. The natural assumption is that his

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