This item contains biographical information and a signature of a renowned scientist, Charles H. Best (b.1899-d.1978), an American-Canadian medical scientist and one of the co-discoverers of insulin, collected by David S. Light, M.D. as part of the Light collection of scientific letters. Dr. Best earned a medical degree and doctorate, and succeeded John J. R. Macleod as professor of physiology at the University of Toronto in 1929. He then took over for Frederick G. Banting as director of the Banting and Best Department of Medical Research in 1941. The autograph is on reprint: Reminiscences by Charles H. Best, CBE, Reprinted from Medical Graduate, Christmas, 1965. Inscribed to Arthur Siemientkowski. This item also includes a newspaper clipping: Insulin finder recalls days of trial and error. The Miami Herald (Thurs. April 8, 1971), 36D. The collection was donated to the Rudolph Matas Library of the Health Sciences between 1993 and 2003. David S. Light, M.D. (alumnus, Tulane University School of Medicine, 1944)