BY THE SAME AUTHOR. 12mo, cloth, $1 50. CHEMICAL EXAMINATION ALCOHOLIC LIQUORS. A MANUAL OF THE CONSTITUENTS OF THE DISTILLED SPIRITS AND FERMENTED LIQUORS OF COMMERCE, AND THEIR QUALITATIVE AND QUANTITATIVE DETERMINATIONS. ALBERT B. PRESCOTT, PROFESSOR OF ORGANIC AND APPLIED CHEMISTRY IN THE UNIVERSITY OF MICHIGAN. SECOND EDITION. NEW YORK: D. VAN NOSTRAND, PUBLISHER, Entered, according to Act of Congress, in the year 1874, by D. VAN NOSTRAND, In the Office of the Librarian of Congress, at Washington, D. C. PREFACE. THIS little work has been prepared more especially for the use of a class of chemical students who devote a semester to the analysis of vegetable products and other organic mixtures, taking previously at least two semesters in qualitative and quantitative analysis. After working with this class for several years, without other aid than a manuscript digest of directions and references, the author is convinced that a compilation in this subject is desirable-not alone for students in special applications of chemistry, but for the convenience of every general analyst. Proximate organic analysis is not altogether impracticable, and organic chemistry is not solely a science of synthetical operations even at present. It is true, as the chief analytical chemists have repeatedly pointed out, that in the rapid accumulation of organic compounds the means of their identification and separation have been 5 |