At Columbia she worked with
Thomas Hunt Morgan and
Edmund Beecher Wilson. Her doctoral thesis in 1913 was on the male germ cells of genus
Notonecta, an aquatic insect, leading her to further work focusing on cellular mechanisms in inheritance and development. She was supported during this time by several fellowships aimed at assisting
women in science, including a
Sarah Berliner Research Fellowship from the
Society for the Promotion of University Education for Women. This work, done in 1909, preceded experiments in 1924 by
Hans Spemann and
Hilde Mangold, that are credited with discovering the "organizer" — this work was the basis of a
Nobel Prize given to Spemann. In the 1930s, she demonstrated a method of
parthenogenetic cleavage, inducing unfertilized sea urchin eggs to cleave and ultimately to hatch. Browne used
centrifugal force to remove the nuclei of these eggs. This work received popular attention as "creation of life without parents". Browne's experiments were especially noteworthy in that she demonstrated that chromosomes were not necessary to create life. Her experiments showed that cytoplasm was capable of developing life without the need for the nucleus. She termed this method of creating life as "parthenogenic
merogony" in which "a portion of the egg without the nucleus is fertilized". In 1950, Ethel Browne Harvey was elected to be the second woman on the Marine Biological Laboratory board of trustees. Browne worked for many years at the
Marine Biological Laboratory at
Woods Hole, Massachusetts. She taught at a variety of institutions, including the
Bennett School for Girls in Millbrook, New York, the
Dana Hall School in Wellesley, Massachusetts;
Washington Square College at NYU. She conducted scientific research in a variety of positions including
Princeton University and
Cornell Medical College. She was associated with the
American Women's Table in Naples, an organization established by
Ida Henrietta Hyde and other women scientists. ==Bibliography==