Instead of a revision of the "Chemistry of the Amino Acids and Proteins," this addendum was published. It brings up to date some of the salient advances made in the field of protein chemistry since 1937, when the original book was written.
Practically every chapter has been revised and corrections made on the original text. At the end of each chapter there is a complete bibliography of the publications from which the data were drawn. The authors have adhered to their previous level of clear presentation of their respective problems. The addendum is certainly to be recommended to all who are interested in the advances in protein chemistry for the past four years. It is really a small book in itself, written by investigators active in the field. The authors should be encouraged to keep the book up to date, perhaps preferably by making a complete revision of the original