Summaries of 11 cases presenting with the complication of labour, constriction ring, are given. The pitfalls, symptoms, signs and treatment of the condition are, outlined, together with a review of the literature.
A method for the preparation of soya bean broth is detailed and typhoid vaccines prepared on soya and meat media respectively are compared in relation to agglutinin production in rabbits and mouse protection tests. The vaccine prepared on soya bean medium is not inferior to that produced on meat medium. The use of soya bean affords a considerable saving in costs.