A symposium of 14 papers together with an introduction by A. E. Mourant comprises an entire number of this journal. The wide variety of subjects indicates the many physical and biological sciences invaded by research on the blood groups. The papers also impress the reader with the intensive investigations in this field being carried out in Great Britain. To be informative each paper must be considered separately.
"Factors Determining the Relative Clinical Importance of Different Blood-Group Antibodies," by P. L. Mollison (pp. 92-98). The author classifies the isoantibodies as those occurring naturally and those acquired by isoimmunization. The laboratory characteristics of each are discussed and related to their clinical significance in diseases of man. Data from the author's own studies are presented to illustrate the rates of destruction of transfused erythrocytes when acted upon by various antibodies.
"The Inheritance of Blood Groups," by R. R. Race and R. Sanger (pp.