Research Article | Published:

Selective Action of Mortality

Nature volume 140, pages 410411 (04 September 1937) | Download Citation



FOR the reasons that they furnish reliable information concerning the progress of a vast experiment which we are conducting with ourselves as the experimental material, and also that they can be appreciated only by such as can bring to their examination knowledge derived from a comparative study of different forms, wild and domesticated, in the open and under the conditions of controlled experimentation, the attention of the zoologist is directed by Prof. E. A. E. Crew in his presidential address to Section D (Zoology) to the facts and observations relating to the human sex ratio.

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