Smith, Allen J., A.M., M.D., Philadelphia, 1890, 1891, 1892.
Smith, J. Lewis, M.D., New York, 1888, 1889, 1890, 1891, 1892.
Spitzka, E. C., M.D., New York, 1888.
Starr, Louis, M.D., Philadelphia, 1888, 1889, 1890, 1891, 1892.
Stimson, Lewis A., M.D., New York, 1888, 1889, 1890, 1891, 1892.
Sturgis, F. R., M.D., New York, 1888.
Sudduth, F. X., A.M., M.D., F.R.M.S., Minneapolis, 1888, 1889, 1890, 1891, 1892.
Thomson, William, M.D., Philadelphia, 1888.
Thomson, Win. H., M.D., New York, 1888.
Tiffany, L. McLane, A.M., M.D., Baltimore, 1890, 1891, 1892.