The authors of this monograph have successfully dealt with the knowledge centering around the amino-acids in a complete and critical manner. They not only have attempted to order the facts about the amino-acids but have assuredly attempted a critical discrimination and reconciliation of conflicting data and theories.
Approximately, the first third of the monograph is devoted to an excellent description of the physical and chemical properties of the amino-acids, their determination in proteins and their individual identification. This section is well illustrated with photographs of the crystalline amino-acids. The tables listing their properties are clear, and the sources of the data are easily identifiable. Methods of determination referred to are described in general terms but not in detail because the authors wisely refrained from making this volume a laboratory guide.
The last two thirds of the book are devoted to the physiology of the amino-acids. The course of the amino-acids