THE recent revival of interest in benzylamine-p-sulphonamide, owing to its effectiveness against gas gangrene infections when applied locally, has led to the preparation of a number of compounds of the general type NR'R”. CH,* CsH,* SO, R, many of which show activity against CZ. Welchii. The evidence available suggests that the mode of action of this series of drugs is different from that of the sulphanilamide series. Thus the N1-thiazole and ...