Cocks or hens to order may be the daily program of the poultry yard a few years hence, if experiments by Dr. F. A. E. Crew, director of the biological research laboratory at the University of Edinburgh, reported at the Liverpool meeting of the British Association for the Advancement of Science (TIME, Sept. 24) fulfill his expectations. Dr. Crew took a pure-bred buff Orpington hen which had already laid eggs, and by an artificial glandular process little understood, changed its sex. At least, the comb, wattles and spurs grew, the bird crowed...
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