This volume is a compendium of manuscripts presented at a symposium of the 13th International Congress of Hematology in Munich in August 1970. The symposium was chaired by Kurt von Kaulla, who has made several important observations in the highly specialized area of research that are covered here. It is clear from the material presented that blood coagulation plays an important pathobiological role in the grafting of transplanted organs. This is not surprising; there is abundant evidence that blood coagulation is an intermediate mechanism of disease.
The usual advantage of a book of this type is the short amount of time between presentation of papers and date of publication, but since there is then little time for editing, the manuscripts suffer accordingly. In this case, however, the manuscripts have been edited carefully and illustrations and photomicrographs are superb, but the time advantage is largely vitiated, as more than a year