Darwin, Charles: Descent of Man, 1909, Appleton & Co., Second Edition.
DeFursac, J. Rogues: Manual of Psychiatry, 1908, John Wiley & Sons, New York.
Dickinson, Edward: The Study of the History of Music, 1912, Chas. Scribner’s Sons, New York.
Ellis, Havelock: Studies in the Psychology of Sex, 1906, F. R. Davis Co., Philadelphia.
Ellis and Horne: The Story of the Greatest Nations, Niglutsch.
Galton: Hereditary Genius and English Men of Science.
Gibbins, H. de B.: Industry in England, 1907, Charles Scribner’s Sons, New York.
Gibbons, Ed.: Roman Empire, Hurst & Co., New York.
Giddings: Democracy and Empire, 1912, MacMillan Co.; Principles of Sociology, 1911, MacMillan Co.; Descriptive and Historical Sociology, 1909, MacMillan Co.; Inductive Sociology, 1909, MacMillan Co.; Elements of Sociology, 1898, MacMillan Co.; “Sociology,” a lecture published in 1908 by the Columbia Press.
Grote, George: Greece, Peter Fenelon Collier & Son, New York.