Lipschütz, Alejandro, 1883-1980

• Warum wir sterben (German) (as Author)

Wells, H. G. (Herbert George), 1866-1946

• Text Book of Biology, Part 1: Vertebrata (English) (as Author)

Wilson, Edmund B. (Edmund Beecher), 1856-1939

• Biology : A lecture delivered at Columbia University in the series on Science, Philosophy and Art November 20, 1907 (English) (as Author)