_Symptoms._ The primary and main disease, in such instances, is a species of catarrh; differing, however, from ordinary catarrh in its diagnosis, and in the extent of the lesions accompanying both the primary and the symptomatic diseases. The animals affected do not, necessarily, at first show any signs of violent colds, as coughing, sneezing, or labored respiration; the only indications of catarrh noticed, oftentimes, being a nasal discharge. Animals having this discharge appear dull and drooping; their eyes run a little, and are partially closed; the caruncle and lids look pale; their movements are languid, and there is an indisposition to eat; the pulse is nearly natural, though at times somewhat too languid. In a few days these symptoms are evidently aggravated; there is rapid emaciation, accompanied with debility; the countenance is exceedingly dull and drooping; the eye is kept more than half closed; the caruncle, lids, etc., are almost bloodless; a gummy, yellow secretion about the eye; thick, glutinous mucus adhering in and about the nostrils; appetite feeble; pulse languid; and muscular energy greatly prostrated. They rapidly grow weaker, stumble, and fall as they walk, and soon become unable to rise; the appetite grows feebler; the mucus at the nose is, in some instances, tinged with dark, grumous blood; the respiration becomes oppressed; and the animals die within a day or two after they become unable to rise. Upon a _post-mortem_ examination, the mucous membrane lining the whole nasal cavity is found highly congested and thickened throughout its entire extent, accompanied with the most intense inflammation; slight ulcers are found on the membranous lining, at the junction of the cellular ethmoid bones with the cribriform plate, in the ethmoidal cells; and the inflammation extends to the mucous membrane of the pharynx, and some inches, from two to four, of the upper portion of the [oe]sophagus. No sheep, affected with this disease, recovers after emaciation and debility have proceeded to any great extent. In the generality of instances, the time, from the first observed symptoms until death, varies from ten to fifteen days; although death, in some cases, results more speedily. _Treatment._ Nothing has been found so serviceable as mercury, which, from its action on the entire secretory system, powerfully tends to relieve the congested membranes of the head. Dissolve one grain of bi-chloride of mercury--corrosive sublimate--in two ounces of water; and give one-half ounce of the water, or one-eighth of a grain of corrosive sublimate, daily, in two doses. To stimulate and open the bowels, give, also, rhubarb in a decoction, the equivalent of ten or fifteen grains at a dose, accompanied with the ordinary carminative and stomachic adjuvants, ginger and gentian in infusion. COLIC.