"Jacobi's paper was a response to Dr. Edward H. Clarke's earlier publication, Sex in Education; or, A Fair Chance for the Girls (1875), a book claiming that any physical or mental exertion during menstruation could lead to women becoming infertile.^[4] Jacobi did not believe this was the case, and to test the idea she collected extensive physiological data on women throughout their menstrual cycle, including muscle strength tests before and after menstruation. She concluded that "there is nothing in the nature of mentruation to imply the necessity, or even desirability, of rest." (Wikipedia article on Mary Putnam Jacobi, accessed 3-2020). 

Digital facsimile from the Internet Archive at this link.

A collection of articles by various experts supporting the opening of the planned Johns Hopkins Medical School to women. Contributors included Cardinal Gibbons, Mary Putnam Jacobi, Josephine Lowell, C. F. Folsom, Carey M. Thomas, and Osler. "In light of the experience in Switzerland, Dr. Osler expressed himself as entirely in favor of the admission of women on a co-educational basis." When it opened in 1893 The Johns Hopkins Medical School accepted a limited number of women students.

Digital facsimile from the U.S. National Library of Medicine at this link.