Dr. Cartwright has presented in compact form a manual for the guidance of house officers and practitioners in the laboratory diagnosis of hematologic disorders. He has chosen one method for each examination, using the criteria of "simplicity, accuracy, reliability, time of performance, cost, and availability of equipment." Not only are adequate instructions provided for each determination, but comments on sources of error, interpretation, and indications for further procedures are also included.
It is surprising, however, that the author has entirely omitted ABO and Rh typing, the Coombs test, and the heterophile agglutination yet included other, less frequently indicated procedures. Despite his excellent coverage of tests for urine and stool pigments related to hemoglobin, he has not included the van den Bergh test.
The user of this manual should find it a valuable, convenient, and time-saving source of information. Some of the procedures presented are not usually thought of as "commonly