* Essential parts from a thesis accepted as part of the requirements for the degree of M.D. of the University of Edinburgh. The origin, incidence and causation of thrombosis and pulmonary embolism was investigated in a hundred unselected, consecutive autopsies. Thrombosis was encountered in 51 cases and pulmonary embolism in 21. In cases where pulmonary emboli were found thrombosis of the leg veins was invariably present.
In a territory where dysentery is almost exclusively ofbacillary origin, and where acute amoebiasis is almost nonexistent,there is a carrier rate of E. histolytica among Africans of at least 33.4 per cent. The danger to public health is indicated.
Height and weight measurements were taken and standard physical efficiency tests applied to two representative sample groups of South African Bantu school-children selected on account of the fact that the one (Pietermaritzburg) were in comparatively good health, while among the other Bochem-Letaba) an extremely high incidence of disease was found. The latter showed a significant deficiency in body-weight. However, the extremely bad state of health of the Bochem-Letaba children was not reflected in the results of the physical efficiency tests. Once more the conclusion is drawn that the physiological basis of physical efficiency is not necessarily destroyed even by severe illness.
Mention is made of 156 Natives treated on Van Dyk Mine during three years, 39 of which were Wassermann-tested over periods ranging from 4 to 15 months. These are illustrated on the accompanying table. Some observations of mine medical officers on Bantu syphilis are shortly summarised. A report on the cases treated on Van Dyk Mine is included. Comment is made on the ready response of the Bantu to antisyphilitic treatment.