New York, Jan. 8, 1898. To the Editor: —Under "Leprosy in Norway," Dr. W. S. Caldwell writes to theJournal of the American Medical Association, Dec. 18, 1897: "Speaking to my host (Hansen's first assistant) in a congratulatory tone of our almost entire exception from the disease in the United States, he answered me warmly and decidedly, saying: 'You have plenty of lepers in your country, but your physicians do not recognize the disease, and allow the patients to run at large, while here in Norway we diagnose the malady in its early stages and isolate the patients.' In a late visit of Dr. Hansen to the United States, he told me that the Doctor found three cases in the hospitals in Chicago, and twice as many in New York, as well as encountered several cases of true leprosy upon the streets of each city, all of whom were being