Reagent chemicals and standards : with methods of assaying and testing them; also the preparation and standardization of volumetric solutions and extensive tables of equivalents / by, Joseph Rosin. Rosin, Joseph, 1880- [from old catalog] Chemical tests and reagents. QD77 .R63 543.01 ROR Includes Index. New York : D. Van Nostrand company, inc., c1937. c1937. 1937 Text ix, 530 p. : eng