A case of intra-uterine normal pregnancy with an extra-uterine abdominal full term dead foetus (lithopaedion) is described. The impossibility of differentiation from twin uterine pregnancy until after birth of first baby is pointed out.
1. A disease occurring among Chinese in Malaya is described. The main complaints are weakness and numbness of the legs ; and the main signs absent tendon reflexes, sensory loss and ataxia.
2. The aetiology is discussed and the disease is thought to be a form of pellagra modified by other factors in the diet or circumstances of those affected.
1. Observations made on groups of light and dark skinned individuals indicate that the percentage of dark skinned people who can be recognized as immune by their reaction to vaccination is considerably lower than in the case of people with a lesser skin pigmentation.
2. It is suggested that the reading of "immune reaction" is influenced considerably by the intensity of skin pigment found in the individual.
3. It would appear that while the usefulness of immune reaction readings in light-skinned peope is very great, its value is limited when applied to those with dark skins.