In addition to the printed address of Dr. Da Costa (1833-19900) are a program, clipping, and a number of letters from well-known personalities dealling with this address made on his retirement from Jefferson. Correspondents are Oliver W. Holmes, Horace J. Furness, Francis Parkman, Wayne MacVeigh, James Paget, Furman Sheppard, James W. Holland, D.G. Brenton, E.D. Gillespie, Daniel C. Gilman, Samuel Claggett Chew, Jas. E. Reeves, Francis Minot, Reginald H. Fitz, F.C. Shattuck, Levi C. Lane, Grace R. (Gross) Osler, A. Haller Gross, Theophilas Parvin, Henry C. Chapman, Oliver Albert Judson, Simon Gratz, Henry Hazlehurst, Arthur V. Meigs, Fred P. Henry, Augustus A. Eshner, Solomon Solis Cohen, Frank Woodbury, Francis J. Child and James Alexander Grant.