Blood Immunity and Blood Relationship

This work is a most valuable contribution to our knowledge of haematology, and represents an enormous amount of painstaking labour. The material for examination has been obtained from various parts of the globe, and some 2,000 tests have been made with fresh and dried specimens of blood. The inter-relationship of the vertebrates has been investigated by means of the precipitin test, a research that has given remarkable confirmation of the most recent statement of the genealogical relationships of the mammalia and other vertebrates. There is an