Know how to use "fewer" and "less"? Find out.
Lyon Ly·on (lī'ən), Mary Francis. Born 1925.
British geneticist whose research on mice led to her formulation of the Lyon hypothesis.
Hamilton Ham·il·ton (hām'əl-tən), Alice. 1869-1970.
American toxicologist and physician known for her research on occupational poisons and her book Industrial Poisons in the United States (1925).