“ADVANCES in Enzymology” is the successor of “Ergebnisse der Enzymforschung”, which appeared first in 1932 and ceased to exist after its eighth annual publication in 1939. During this period the “Ergebnisse” achieved a high reputation for the authoritativeness of its articles, which covered most fields of biological chemistry. It was consulted by research workers, teachers and students, who found it a ready means of keeping abreast of a complicated and diffuse literature. Its complete disappearance would have meant a great loss. Fortunately, it has been born again under the title “Advances in Enzymology”: edited by Nord and Werkman, and published in the United States. The first three volumes of this annual publication have now appeared and cover the years 1941-43. The high scientific quality of the articles that was associated with the “Ergebnisse” is maintained, and although there has been obvious restriction in choice of authors (due to war conditions), the matter published is instructive, critically written, and embodies many of the most recent developments in biochemistry. Advances in Enzymology and Related Subject Edited by F. F. Nord C. H. Werkman. Vol. 1. Pp. x + 433. (New York: Interscience Publishers, Inc.; London: H. K. Lewis and Co. Ltd., 1941.) 5.50 dollars; 33s. net. Vol. 2. Pp. viii + 374. (New York: Interscience Publishers, Inc.; London: Imperia Book Co. Ltd., 1942.) 5.50 dollars. Vol. 3. Pp. viii + 408. (New York: Interscience Publishers, Inc., 1943.) 5.50 dollars.