The Dynamic State of Body Constituents.

By the untimely death of Rudolf Schoenheimer in September 1941 biologic chemistry and the medical sciences in general lost one of their most outstanding figures, a man whose influence in the development of knowledge in these fields has been and will continue indefinitely to be deep and extensive. This monograph represents a summary of his pioneering investigations of intermediary metabolism with the important new tool the isotope. The first drafts of the lectures, to be delivered at the Harvard Medical School, were prepared by Dr. Schoenheimer. After his death the manuscript was revised and drawn up in its present easily readable and understandable form by Dr. Hans T. Clarke, of Columbia University, with the aid of Drs. D. Rittenberg and S. Ratner. The small volume affords an opportunity for both the medical investigator and the practicing physician to obtain a lucid and concise picture of one of the important new