BÖDECKER, C. F., AND APPLEBAUM, E.: Dental Cosmos, 1932, 74, 335. GRIEVES, C. J.: Jour. Amer. Dent. Assoc., 1922, 9, 467. HOPPERT, C. A., WEBBER, P. A., AND CANNIFF, W.: Science, 1931, 74, 77. KLEIN, H., AND SHELLING, D. H.: Journal of Dental Research, 1931, 11, 151. BARKER, F. J.: Jour. Amer. Dent. Assoc., 1931, 18, 17.
2.
ROSEBURY, T., AND KARSHAN, M.: Journal of Dental Research, 1931, 11, 137. DowNS, W. G.: Ibid., 1932, 12, 363. KNOWLTON, G. C.: Proc. Soc. Exp. Biol. and Med., 1930, 27, 757.
3.
Blackberg, S.N., AND Berke, J.D.: Journal of Dental Research, 1932, 12, 349.
4.
Blackberg, S.N., AND Berke, J.D.: Journal of Dental Research-succeeding number.
