Item is a pamphlet advertising an insulin preparation developed by the Lafayette Pharmacal Co. The preparation, called Entero Cap Insulin, is in capsule form to be administered orally. The pamphlet explains proper administration and dosage. This pamphlet was enclosed in a letter from Dr. G. H. A. Clowes to F. Lorne Hutchison. Dr. J. A. Gilchrist tested the Lafayette Pharmacal Company's Entero Cap Insulin at the request of the Insulin Committee and sent his findings to F. Lorne Hutchison.