The discharges often commence like a common diarrhoea, with copious liquid evacuations, but there is more or less griping pain, low down, from the beginning. The evacuations sooner or later become lessened, slimy or bloody, or both, the pain increasing accompanied with more or less fever, often quite severe. Sometimes the patient is costive, and has been so for several days, the dysentery coming on without being preceded by looseness. At others, especially in summer, when fevers are prevailing, the dysentery begins with a severe chill, followed by fever and the dysenteric symptoms above described. TREATMENT. If it begins with looseness without blood, give _Arsenicum_ and _Veratrum_ alternately, once an hour, or oftener if the evacuations are more frequent. If the discharges are bloody, use _Mercurius cor._ in place of the _Arsenicum_. If there is any sickness of the stomach, or the discharges are dark or yellow, use _Podophyllin_ with _Mercurius cor._ If there are colic pains in the bowels, use _Colocynthis_ alternately with the others, giving it between them. If the patient was costive previous to the attack, and the dysentery came on without much looseness, _Nux Vomica_ should be given alternately with _Mercurius cor._ If the disease comes on with a chill, or a chill occurs at any time during the attack, followed by fever, _Aconite_, _Baptisia_ and _Podophyllin_ should be used in rotation half an hour apart until a free perspiration is produced, and the pain diminishes; or if bloody stools appear, use _Mercurius cor_, with the _Aconite_ and _Baptisia_. A large proportion of the dysenteries of hot weather in miasmatic regions, will be arrested in a few hours by these three or four remedies, especially if the patient keeps still, and generally even if he keeps about his business. In very bad cases, much benefit will be derived from injections of Gum Arabic water, or mucillage of Slippery Elm thrown into the bowel in quantities of a pint or more at a time, as warm as can possibly be endured. I have often relieved patients immediately with injections of a strong solution of Borax in Rice water, as hot as bearable. _Never apply cold water_ to _any_ inflamed surface, much less a _mucous_ surface. All food should be withheld as far as practicable and not starve, until the symptoms abate. Colic. The symptoms of this are cramping pains in the abdomen, without fever or looseness of the bowels. The colic sometimes occurs after the cessation of a diarrhoea that had been induced by severe cathartics. The pains are cutting and straining, drawing the bowels into knots, relieved temporarily by pressure. TREATMENT.