"The word “ecology” may seem to have rather suddenly intruded upon the world’s consciousness circa 1970, but at , Edith Adelaide Roberts, professor of plant science, was popularizing the term—and studying the interrelationship between organisms and their environment—half a century earlier. In addition, it was Roberts who proved (along with fellow Plant Science faculty member Mildred Southwick, in a 1948 paper presented to the ) that young green and yellow plants are the original source of . “This being so,” the New York Times reported, “fish livers can no longer be regarded as the main source of vitamin A.” Later generations who have been spared doses of , preferring instead to get this vital nutrient from carrots or , have reason to be grateful to Roberts."