1. The Face of the Normal Child;Broadbent;Angle Orthodontist,1937
2. Technic and Advantages of Simultaneous Reproduction of Hard and Soft Tissues in Profile Roentgenography;Higley;J. A. D. A.,1939
3. Wester, E. J.: Member of the Ritter Dental Equipment Co. Sales Staff, personal communication.
4. McDowell, R. M.: Member of Staff of the Child Research Council, Denver, personal communication.