Item #18951 Original Bacteriology PH.D Thesis by Delaphine Rosa, Univ of Wisconsin Student 1938 and Future Wellesley College Dean. Women in Science, Bacteriology.
Original Bacteriology PH.D Thesis by Delaphine Rosa, Univ of Wisconsin Student 1938 and Future Wellesley College Dean
Original Bacteriology PH.D Thesis by Delaphine Rosa, Univ of Wisconsin Student 1938 and Future Wellesley College Dean

Original Bacteriology PH.D Thesis by Delaphine Rosa, Univ of Wisconsin Student 1938 and Future Wellesley College Dean

Manuscript

[Women in Science],[Medical] Women's Education] Rosa, Delaphine Grace. The Variability of Caseolytic and Sucrose-Fermenting Characteristics of Certain Bacteria. Madison: University of Wisconsin, 1938. 40 pages of typed text, accompanied by 12 pages of microphotography. Solid black hardcover with gilt engraved spine "Rosa, D.G. - PH.D. Thesis - 1938". 8.5" x 11". The title pages notes that this is "A thesis submitted to the graduate school of the University of Wisconsin in partial fulfillment of the requirements for the degree of Doctor of Philosophy". In her thesis, Delaphine Grace Rosa postulates that in her previous years of studies, "numerous reports indicate marked variability in the biochemical reactions" of various species of bacteria. As a result, she questions "the reliability of fermentation and proteolytic reactions". To support her hypothesis, she conducts complex studies to "ascertain the extent of variation among the progeny of pure cultures and to determine the effects which environmental factors may have upon the variability of the physiological reactions investigated". Additionally, she presents intricate data and high-quality monochromatic microphotography, capturing various bacterial species in petri dishes interacting with different substances. In her later years, Delaphine Grace Rosa moved to Newington, where she became a professor at the notable all-women's institution, Wellesley College. In the years that followed, she became the dean of women. Back cover bears adhesive remnants. Clean and bright pages, in very good condition.

Item #18951

Price: $225.00