RT Journal T1 MEthods in medical research. volume i JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1949 FD March 26 VO 139 IS 13 SP 891 OP 891 DO 10.1001/jama.1949.02900300077036 UL http://dx.doi.org/10.1001/jama.1949.02900300077036 AB This volume is the first of a series, presenting descriptions and critical evaluations of methods, apparatus and step by step procedures in various fields of biologic and medical research. The present publication covers four fields: (1) assay of antibiotics, (2) circulation—blood flow measurement, (3) selected methods in gastroenterologic research and (4) cellular respiration. Each section is in charge of an associate editor, and some contain contributions and comments by particular experts on special aspects, so that altogether some fifty contributors and reviewers have added their knlowledge to this compilation.This book and others to follow will meet a long felt need in biologic and medical laboratories, and should also be of considerable interest to physicians who wish to know the basis on which many of the facts which they use in practice have been established. The authors and publishers are to be congratulated on a useful service, well performed.