Crowther, J. G. (James Gerald), 1899-
Famous American men of science / by J.G. Crowther.
Edison, Thomas A. (Thomas Alva), 1847-1931.
Franklin, Benjamin, 1706-1790
Gibbs, J. Willard (Josiah Willard), 1839-1903
Henry, Joseph, 1797-1878
Scientists -- United States.
Sociology.