RT Journal T1 VItamins and vitamin deficiencies JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1939 FD July 8 VO 113 IS 2 SP 171 OP 171 DO 10.1001/jama.1939.02800270071029 UL http://dx.doi.org/10.1001/jama.1939.02800270071029 AB The author is a well known authority on nutrition, and yet with characteristic modesty he states that the present volume has been written because of a need of keeping himself familiar with the growth of knowledge about the vitamins. To learn about a subject there is the Oxford way—to read all the books that have been written on it—and the Cambridge way—to write your own book. Readers will be glad that Professor Harris chose the Cambridge way. The present small volume consists of an introduction to the vitamins from the historical point of view and a discussion of vitamin B1 and of beriberi as a vitamin deficiency disease. The features of the book are the commendable brevity with which the material is summarized, the large number of well chosen illustrations and the fairly complete bibliography. Some of the experimental results described in the literature are well summarized in the