Note on action of corpus luteum upon the mammary glands

Abstract

Our experiments were made upon virgin rabbits. The corpora lutea of the cow were rubbed up with sterilized water and injected hypodermically every three days for a month. The rabbits were of the same size. Care was taken that no sepsis ensued by the injection. It was found that the mammary glands enlarged to a considerable extent, more than twice the original size. They also contained milk. Upon their removal after death and hardened, sections were made and stained. Under the microscope there was about a ten-fold increase in the number of glands compared with the occasional ones in the virgin rabbit.