Treatment of Cholera.— Extract of a letter received from one of the first surgeons at New Castle, and the most successful in the treatment of Cholera. “When the patient is cold, and the pulse at the wrist is absent or very feeble, and cramps are present, with vomiting and purging, I then exhibit the tobacco remedy. It is prepared by infusing one drachm of strong tobacco into a pint of boiling water; it is allowed to stand one hour, and then strained through some muslin. I generally give half the quantity in the form of an enema, making the patient retain it as long as possible. In three or four hours I give the other half, if the patient begins to sink again. During the progress of this case I give saline jalap, with about a teaspoonful of brandy in each dose, every two hours, and a small dose of calomel, (2 grs.) every hour, to endeavor to excite the secretion of the bile. The patient must be kept warm during the time, and must on no account be allowed to sit up.”