Principles of animal biology / by A. Franklin Shull ... with the collaboration of George R. Larue ... and Alexander G. Ruthven ... Shull, A. Franklin (Aaron Franklin), 1881- Larue, George R. (George Roger), 1882- joint author. Ruthven, Alexander Grant, 1882- joint author. Biology. QH307 .S5 1934 591.191 SHP "References" at end of each chapter except one. New York, London ; McGraw-Hill book company, inc., c1934. c1934. 1934 Text xiv, 400 p. : eng McGraw-Hill publications in the zoölogical sciences McGraw-Hill publications in the zoological sciences.