The Journal of Experimental Medicine, Vol 63, 893-900,
Copyright, 1936, by The Rockefeller Institute for Medical Research New York
SOME EFFECTS OF OVARIECTOMY DURING THE PERIOD OF DECLINING REPRODUCTIVE POWERS IN MICE
William S. Murray Sc.D.1
1 From the Roscoe B. Jackson Memorial Laboratory, Bar Harbor
Cessation of breeding and castration of female mice approaching the period of declining reproductive power have at least two effects upon the subsequent life history of these animals.
1. The average expectation of life is appreciably increased.
2. The incidence of tumor is markedly decreased, especially in the older age groups.
Submitted on February 12, 1936