Longstreth, Morris, M.D., Philadelphia, 1888, 1889, 1890.
Loomis, Alfred L., M.D., LL.D., New York, 1888, 1889.
Lyman, Henry M., A.M., M.D., Chicago, 1888.
McGuire, Hunter, M.D., LL.D., Richmond, 1888.
Manton, Walter P., M.D., F.R.M.S., Detroit, 1888, 1889, 1890, 1891, 1892.
Martin, H. Newell, M.D., M.A., Dr.Sc., F.R.S., Baltimore, 1888, 1889.
Matas, Rudolph, M.D., New Orleans, 1890, 1891, 1892.
Mears, J. Ewing, M.D., Philadelphia, 1888, 1889, 1890, 1891.
Mills, Charles K., M.D., Philadelphia, 1888.
Minot, Chas. Sedgwick, M.D., Boston, 1888, 1889, 1890, 1891, 1892.