The III Interamerican Cardiological Congress will be held in Chicago, Ill., U.S.A. at the Michael Reese Hospital and at the Stevens Hotel on June 13 to 17 inclusive. This Congress is under the auspices of the Interamerican Society of Cardiology and the National Heart Associations of the Western Hemisphere. Dr. Louis H. Katz, Chicago, is president. Inquiries for information and registration should be made to the Secretary-Treasurer, Dr. Richard Langsdorf, 29th St. and Ellis Ave., Chicago 16, Ill.