Richards, A.G. , AND Thomassen, L., Microstructure of Tooth Surfaces as Revealed by the Electron Microscope, J. A. D. A., 31: 772, 1944.
2.
Gerould, C.H. , Ultramicrostructures of the Human Tooth as Revealed by the Electron Microscope, J. D. Res., 23: 239, 1944.
3.
Dean, H.T., Fluorine, Mottled Enamel, and Dental Caries, J. Pediat., 16: 782, 1940.
4.
Hodge, H.C., Is Fluorine a Therapeutic Agent for Dental Caries?J. A. D. A., 29: 2063, 1942.
5.
Arnold, F.A. , JR., R61e of Fluorides in Preventive Dentistry , J. A. D. A., 30: 499, 1943.
6.
Dean, H.T., Jay, P., Arnold, F.A., JR., AND Elvove, E., Domestic Water and Dental Caries. I. A dental caries study, including L. Acidophilus estimations, of a population severely affected by mottled enamel and which for the past 12 years has used a fluoride-free water, Pub. Health Rep., 56: 365, 1941.
7.
Dean, H.T., McKay, F.S., AND Elvove, E., Mottled Enamel Survey of Bauxite, Ark. ten years after a change in the common water supply, Pub. Health Rep., 53: 1736, 1938 .
8.
Armstrong, W.D. , AND Brekhus, P.J., Chemical Composition of Enamel and Dentin II. Fluorine Content, J. D. Res., 16: 309, 1937.
9.
Idem, Possible Relationship Between the Fluorine Content of Enamel and Resistance to Dental Caries, J. D. Res., 17: 393, 1938.
10.
Knutson, J.W. , AND Armstrong, W.D., The Effect of Topically Applied Sodium Fluoride on Dental Caries Experience, Pub. Health Rep., 58: 1701, 1943.
11.
Bibby, B.G. , The Use of Fluorine in the Prevention of Dental Caries. II. Effect of sodium fluoride applications, J. A. D. A., 31: 317, 1944.
12.
Volker, J.F. , Hodge, H.C., Wilson, H.J., AND Van Voorhis , S.N., The Adsorption of Fluorides by Enamel, Dentin, Bone and Hydroxyapatite as Shown by the Use of the Radioactive Isotope, J. Biol. Chem., 136: 543, 1940 .
13.
Largent, E.J. , AND Moses, J.B., Topical Application of Fluoride and Fluoride Absorption, J. A. D. A., 30: 1246, 1943.
14.
Heidenreich, R.D., Techniques in Applied Electron Microscopy , J. Opt. Soc. Am., 35: 139, 1945.
15.
Volker, J.F. , Solubility of Fluorosed Enamel and Dentin, Proc. Soc. Exp. Biol. and Med., 43: 643, 1940.
16.
Bibby, B.G. , AND Vankesteren, M., Effect of Fluorine on Mouth Bacteria, J. D. Res., 19: 391, 1940.