40 THE ANALYST. NEW BOOKS. A TEXT=BOOK OF ORGANIC CHEMISTRY. By A. F, HOLLEMAN, Ph.D. Translated from the third Dutch edition by A. JAMIESON WALKER, Ph.D., B.A. ; assisted by OWEN E. MOTT, Ph.D.; with the co-operation of the Author. Second English edition, rewritten. New York, U.S.A. : John Wiley and Sons. London : Chapman and Hall. Price 10s. 6d. An octavo volume, containing 562 pages of subject-matter, 80 illustrations, and index; 34 pages are assigned to introductory matters, 312 to the consideration of fatty compounds, 191 to aromatic compounds and substances related to them, 6 to alkaloids, and 15 to the proteids. ORGAXIC CHEMISTRY. Including Certain Portions of PHYSICAL CHEMISTRY for Nedical, Pharmaceutical, and Biological Students. With Practical Exercises. By H. D. HASKINS, AiB., M.D., and J. J. R. MACLEOD, M.B., D.P.H. First edition London : Chapman and Hall. . Price 8s. 6d. A duodecimo volume, containing 342 pages of subject-matter, 24 illustrations, a New York, U.S.A. : John Wiley and Sons. note to the instructor, certain reference tables, and an index. IMMUNE SEXA. By Dr. CHARLES FREDERICK BOLDUAN. Second edition, rewritten. New York, U.S.A.: John Wiley and Sons. London: Chapman and Hall. Price 6s. Gd. There are 10 illustrations. The book claims to be a, concise exposition of our present knowledge concerning the constitution and mode of action of antitoxins, agglutinins, haemolysins, bacteriolysins, precipitins, cytotoxins, and opsonins. X duodecimo volume, 154 pages, including index.