The apparatus I have used, is Reid’s patent syringe, having a small silver tube attached to the extremity of the flexible injecting tube. The syringe must be quite perfect, so as to avoid the risk of injecting air; the saline fluid should never be injected oftener than _once_ into the same orifice, and the vein should be treated with much delicacy to avoid phlebitis. The wound should be poulticed and carefully watched, if it does not heal by the first intention. I am, sir, your most obedient servant, THOMAS LATTA, M. D. (To be continued.) _Origin and Progress of Cholera at Albany._ The following report made by the medical staff of Albany to the Board of Health, furnishes some interesting information relative to the origin of the epidemic, and the character of the diseases which preceded its appearance in that city. “In presenting to the Board of Health the following tables, showing the bills of mortality of this city from the 22d ult., when the board directed the deaths to be recorded, up to this day, we deem it our duty to make some remarks relative to the health of the city during the above period, and likewise in relation to our future prospects, and the measures we consider useful to accelerate the departure of the pestilence from among us. “We stated in our last report to the board, that immediately prior to the breaking out of the epidemic, our city was unusually healthy. Until about the 20th of June, few diseases prevailed, and the mortality was less than common. From the 22d of June to the 3d of July, only eleven deaths occurred--of those, six were children. In a population of twenty-six thousand, an average of less than one death a day for near two weeks, indicates a degree of health almost without a parallel. From the 30th of June to the 3d of July, _not one single death was reported_. It was, however, but the calm which precedes the storm. All other diseases gave way to the silent but the irresistible march of the epidemic. “Although but few deaths took place from the 20th of June to the 3d of July, there was considerable sickness; and experienced physicians foresaw the coming danger, in the usual prevalence of diarrhœa, and common cholera morbus--hence it was that your board was urged to make all ready--to be prepared with hospitals, physicians, nurses, &c. and to this timely warning, and the preparations made in consequence, we may, under Providence, attribute the limited ravages of this fell pestilence.