BERLIN

Pathogenesis and Clinical Aspects of Thrombosis and Embolism  At a recent session of the Leipziger medizinische Gesellschaft, thrombosis and embolism were discussed at considerable length. According to a comprehensive report in the Deutsche medizinische Wochenschrift, Professor Hueck, director of the Leipzig Pathologic Institute, considered first the anatomic aspects of the pathogenesis of spontaneous thrombosis and embolism. The accepted results that anatomic research has attained thus far have to do with the composition and structure of the thrombi, and also with the observations of the dissecting room concerning the frequency of thrombosis in association with various diseases, the seat of the thromboses, and their distribution with respect to age and sex. The claim is contested, and the question will doubtless not be settled for some time as to whether or not a knowledge of these facts will justify a conclusion as to the causal factors of thrombosis and embolism. It is