Formal Discussion

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Hawkins, G.R. , and Zipkin, I. The Tyrosine, Tryptophan and Uric Acid Content of Whole Human Parotid Saliva by Ultraviolet Absorption Technics (in preparation).

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Zipkin, I. Citric Acid in Saliva, Science, 106:343, 1947.

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Stralfors, A. Unpublished data.

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-. Ed. Fluoride Drinking Waters. (Public Health Service Publication No. 825.) Washington, D.C.: Government Printing Office, 1962.

Fosdick, L.S. Preliminary Clinical Report on Effectiveness of Sodium-N-Lauroyl Sarcosinate in Control of Dental Caries. Northw. Univ. Bull. dent. Res., 54:20, 1953.

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