Essentials of general chemistry by B. Smith Hopkins and John C. Bailar . Hopkins, B. S. (B. Smith), 1873- Bailar, John Christian, 1904- joint author. Chemistry. QD31 .H745 540 HOE "References for further reading" at end of each chapter. includes index. Boston : D. C. Heath and company , c1946. c1946. 1946 Text v, 520 p. : eng