Everything crosses the sea now-a-days, and we suppose the "horse
epidemic" will. This is a disease apparently of the catarrh kind which has attacked the horses of New York and Philadelphia, and almost entirely suspended traffic. Thirty thousand horses were ill at one time, and the omnibuses could not run. The disease is seldom fatal, only 200 deaths being reported, but it is exceedingly embarrassing. Lon- don, for instance, if deprived of horses for a fortnight, would be at its wits' end. We have as yet only tele- graphic accounts of the attack, and therefore no information as to the most important point, the mode in which the infection Is conveyed. It is certainly not conveyed by contact, or it could not have spread so swiftly over an entire city ; while, for the same reason, it can scarcely be diffused like cholera. The poison must be conveyed in the air.