Bibby, B.G., and van Kesteren, M. : The Effect of Fluorine on Mouth Bacteria, J. D. Res. 19: 391, 1940.
2.
Fitzgerald, R.J., and Jordan, H.V.: The in Vitro Effects of Antibiotics and Other Inhibitory Agents on Representative Oral Lactobacilli, Antibiotics and Chemotherapy3: 231-240, 1953.
3.
Jordan, H.V. , and Fitzgerald, R.J.: Types of Lactobacilli From the Oral Cavity of the White Rat, I. A. D. R., J. D. Res. 34: 699, 1955.
4.
Miehalis, L. : Der acetat-veronal puffer, Biochem. Ztschr. 234: 139, 1931.
5.
Macllvaine, T.C.: A Buffer Solution for Colorimetric Comparison , J. Biol. Chem. 49: 183, 1921.
6.
Roberts, M.H. , and Rahn, 0. : Antisepsis and Ionization of Sodium Fluoride , J. Bact.52: 612, 1946.
7.
Rogosa, M., and Mitchell, J.A.: Induced Colonial Variation of a Total Population Among Certain Lactobacilli , J. Bact. 59: 303, 1950.
8.
Rogosa, M., Mitchell, J.A., and Wiseman, R.F.: A Selective Medium for the Isolation and Enumeration of Oral Lactobacilli , J. D. Res. 30: 682, 1951.
9.
Snedecor, G.W.: Statistical Methods, ed. 4, Ames, Iowa, 1948, Iowa State College Press .
