Correspondence between Dr. Cone and J. Gilbert Turner, I.M Tarlov, J.C. Howarth (concerning photograph of craniotomy manufactured by William Thompson), W.R. Thrower, Julian Taylor.

Correspondence between Dr. Cone and John Roth, Yoon Bom Kim, Julius Stoll, Cecil Mushatt, Harry Steelman, Preston Robb, Arthur Ward, J.L. Shugar, Peter Lehman, Donald Coburn, Jack kershman, W.C. Gibson (includes a photograph of Charles Sherrington), Fancis McNaughton, Wendell MacLeod, I.M. Tarlov.

Correspondence between Dr. Cone and J. Norman Petersen, Paul Sheldon, Russell Meyers, Walker E. Swift, I.M. Tarlov, C. Fred Ferciot, H.B. Shumaker, David Slight, Frederick Tooke, J.F. Fulton, J. Kingsley, Gavin Miller, Charles E. Frosst & Co., R.E. Holmes, William Stewart, A.B. Stearns, Wilder Penfield, W.P. VanWagenen, Lawrence Fairhall, James H. Peers, J. Grafton Love, James C. White, H.G. Grant, F.W.E. Saunders, Armando Ferraro, George Laing, Gordon Norris, E.F. Mahady Company, C.L. Fuller, Everett Lyle Gage, Beverly C. Leech, W.F. Wells, Gerald Jameison, Oscar Stewart, Samueel Weaver, Peter Heinbecker, Wiley Forbus, John Lilianthal Jr. George Tieman & Co., J. Fergus Grant, Nathan Norcross, C.F. Martin, E.S. McDowell, Paul Hayes, H. Douglas Singer, Bauch & Lomb Optical Co., William Bentley, Eric Oldberg, David Miitchell, J.P.S. Cathcart, F.A.C. Scrimiger, William Gibson, Mrs. George B. Myers, Tracy Putnam, Charles Elsberg, Margaret Moag, W.B. Saunders Company, Philip Lewin, M. Abbott, Frank Ingraham, K.C. McKennie, Robert Graves.