The second edition of this book on laboratory procedures in rheumatology is indeed welcome. There are 12 chapters, all by eminent and wellqualified experts, and the entire spectrum of the subject is well covered. Dr. Cohen is to be congratulated for his editorial skills and his astute selection of collaborators, because all of the sections are well done and carefully balanced, with little or no overlap. Each section contains a succinct discussion of clinical uses and interpretations of the tests, and then a section on detailed methodology for those who want to establish the test in their laboratory. At the end of each section, a selective but comprehensive bibliography is available for the reader who needs more detailed information.
Among the chapters, it is difficult to avoid commenting favorably on each. Dr. Cohen and two of his colleagues from Boston have done a masterful job of reviewing synovial fluid analyses.