The power of potash to alter and diminish the contractility of muscular tissue, furnishes some theoretical ground for an old method of treatment of tetanus by means of potash-baths, and the internal administration of the carbonate, "the method of Stutz" (Huse-mann): practically, this is not often employed, but some cases in which it was successful may be found recorded (Lancet, i., 1861). In chorea, also, baths of the same kind have been found beneficial by G. See and by Hillier. The internal administration of potash may be desirable, for a time, at least, in cases with rheumatic taint, but must not be pushed to the production of spanaemia.