Johnston, Christopher, M.D., Baltimore, 1888, 1889.
Johnston, W. W., M.D., Washington, 1888, 1889, 1890, 1891, 1892.
Keating, John M., M.D., Philadelphia, 1889.
Kelsey, Charles B., M.D., New York, 1888, 1889, 1890, 1891, 1892.
Keyes, Edward L., A.M., M.D., New York, 1888, 1889, 1890, 1891, 1892.
Knapp, Philip Coombs, M.D., Boston, 1891, 1892.
Kyle, D. Braden, M.D., Philadelphia, 1892.
Laplace, Ernest, A.M., M.D., Philadelphia, 1890, 1891, 1892.
Lee, John G., M.D., Philadelphia, 1888.
Leidy, Joseph, M.D., LL.D., Philadelphia, 1888, 1889, 1890, 1891.