Dickinson practiced obstetrics and
gynecology in
Brooklyn. He was professor of obstetrics and gynecology at the
Long Island College of Medicine. He became chief of obstetrics and gynecology at the
Brooklyn Hospital. He was also on the staff at
Methodist Episcopal Hospital and
Kings County Hospital Center. Dickinson was one of the first physician-scientists to obtain detailed sexual histories of his patients. A painstakingly accurate pen-and-ink artist, he made many drawings and sketches during a patient interaction. Such sketches included drawings of the patients'
genitalia. Over his career he collected about 5,200 sexual case histories. Dickinson was the medical illustrator for many medical publications and textbooks. He used electric
cauterization for the treatment of
cervicitis and for intrauterine ablation for
sterilization. In the 1920s, he closed his practice and focused on sexual research and
contraception, and other public health education. In 1923, Dickinson founded the
National Committee on Maternal Health. This society addressed problems of infertility, birth control, and sexual behavior. Dickinson was particularly interested in homosexual desire in women, which he believed was a threat to heterosexual procreation and marriage. Over the years Dickinson changed his assumptions about what constituted perverse sexual behavior. By 1934 he would write that homosexuality "has been stressed far beyond its numerical significance or its importance as a harmful interference with normal response. Physiology is teaching us that we are all in some degree bisexual and that we possess some sex traits other than those characteristics of our overt type, with two series of stages between extreme masculinity and complete femininity." He said that "To stamp [female homosexuality] a 'perversion,' instead of a deviation or deprivation, is to lack a sense of proportion, if not sound judgment." He also said, though, that women's "non-marriage and non-mating" was a "social and biological thwarting," constituting "the frustration of love-comradeship, child-rearing and home-making." He expressed no awareness of how women were faced with the male-dominant legal requirements for marriage, assigning women responsibilities for child-rearing and home-making from which men were exempt, and no awareness on the impact to children of this distortion. As a supporter of birth control and the
eugenics movement, he gave professional support to
Margaret Sanger, In the late 1930s, he began a collaboration with the sculptor
Abram Belskie, resulting in the creation of many life-size medical models. Their
Birth Series, depicting the processes of gestation and delivery, was displayed to crowds at the
1939 New York World's Fair, and copies of the sculptures were distributed world-wide. For many years, the popular series was on display at the
Museum of Science in Boston, Massachusetts. In later years, the two artists worked with plastic and latex, doing pioneering work in medical modeling. At the time of Dickinson's death, the Dickinson/Belskie studio was full of models of women and children, including a sculpture of the (then) "largest baby in the world" with the "smallest viable baby in the world" seated on its lap. He was a member of the National Sculpture Society. ==Personal life==