Cohen, Julius Berend, 1859- Theoretical organic chemistry / by Julius B. Cohen. - 2nd ed. - London; New York : Macmillan, 1912 [reprinted 1917]. - xv, 604 pages: ill. ; 18 cm. Includes index Subjects--Topical Terms: Chemistry, Organic. Dewey Class. No.: 547 / COT 1917