In the diarrhoea of enteric fever, H. Kennedy, Murchison, and other authorities advocate the use of sulphuric acid (v. p. 197). We do not expect from it, as formerly, a power of shortening the morbid process; but it will allay thirst, and, to some extent, moderate the pyrexia and the undue secretion. In any enteric cases, the dose used should be small and well diluted: the aromatic, I find preferable to the simple form.