1. Necrotic Gingivitis;Box,1930
2. Silver Pigmentation of the Gums;Cahn;Arch. Clin. and Oral Path,1938
3. Addison's Disease in the Negro;Conn;Am. J. M. Sc,1946
4. Physiologic Pigmentation of the Oral and Cutaneous Tissues in the Negro;Dummett;J. D. Res,1946
5. Dummett, C. O., and Richards, A. G.: Quantitative Comparisons of the Roentgenographic Resistances of Negro and White Persons Insofar as These Resistances Concern Dental Roentgenography. (Study in progress.)