The need for knowledge of the general nutritional state of South African population groups has been emphasized, whether for public-health purposes, for determining changes in biochemistry and metabolism associated with elevation of socio-economic status, or for current research problems.
A satisfactory classification of simian viruses must take into account their structural, physical, chemical and biological properties; but the observation of distinctive cytopathic changes will continue to be essential for the practical recognition of these agents.
Exfoliative cytology applied to serous effusions is of definite value as a diagnostic adjunct. Preparations from the specimens are stained with Papanicolaou, MayGrunwald Giemsa, and acridine orange stains.
On a prison diet similar to that consumed by the urban Bantu population (15% fat calories), serum-lipid patterns of White and Bantu prisoners were almost identical and agreed with that of the urban Bantu population.
A sex-linked inherited deficiency of glucose-6-phosphate dehydrogenase in red cells with associated instability of glutathione is responsible for an acute, severe self-limiting haemolytic anaemia on exposure to certain aromatic drugs and vegetable substances.
An attempt has been made in this paper to define more clearly the part which the surface activity of the silica particle might play in the pathogenesis of silicosis, and analogies have been drawn with the structure and biological action of other anionic macromolecules.