same solution by the stomach, in doses suitable for the occasion. In October, 1870, 1 was called to the family of Mr. S., of Backett St., where I found his five children Buffering severely with whooping cough. I left the atomizer at the house, with a sufficient quantity of the mixture, at the same time instructing the mother (who was a competent, intelligent person) how to administer it. 1 now and then called to watch progress, and at the expiration of two weeks was pleased to find that the

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... ents, like the others under my care, had speedily and entirely recovered. I submit the above, Messrs. Editors, as my experience in this distressing affection, and hope that if other gentlemen of the profession are induced to try the modus opevatidi, the result may prove as satisfactory to them as it has to me. THE ORIGIN OF INFECTIOUS DISEASES Extract from an Address "Ueber Lazarette und Baracken. Von R[ill]d. Vi rchow."