IT IS THE intention of this review to survey the pertinent 1952 hematology literature. For the sake of continuity, there is some overlapping into the preceding and succeeding years. Liberal use is made of other reviews, editorials, abstracts of proceedings of recent meetings, and the excellent summations of Nutrition Reviews.
The volume of available scientific literature has been progressively mounting. Although no specific figures are available in the field of hematology per se, the increase in the general scientific field may be indicated by the 10 to 12% yearly increase in chemistry publications since 1946. For this particular survey approximately 1,500 articles were reviewed and approximately 900 included. Although a comprehensive coverage of the literature has been attempted, our limitations have made certain oversights and omissions inevitable.
Different subjects demand different presentation of the material. For instance, at one extreme is the excellent objective reporting of progress in the study