A physico medical essay, concerning alkaly and acid, so far as they have relation to the cause or cure of distempers; wherein is endeavoured to be proved, that acids are not (as is generally, and erroneously supposed) the cause of all or most distempers; but that alkalie are. Together with an account of some distempers, and the medicines, with their preparations, proper to be used in the cure of them: as also a short digression concerning specifick remedies. By John Colbatch physician.