Stephan, R.M. : The Effect of Urea in Counteracting the Influence of Carbohydrates on the pH of the Dental Plaques, J. D. Res . 22: 63, 1943.
2.
Muntz, J.A., and Miller, B.F.: Factors Influencing Penetration of Synthetic Detergents and Certain Other Compounds Into Dental Plaque Material, J. D. Res. 22: 73, 1943.
3.
Lefkowitz, W. , and Tanchester, D.: An Histologic Study of Gingiva Exposed to an Ammoniated Dentifrice, New York D. J. 16: 297, 1950.
4.
Pearlman, S. : Influence of Ammonia and of Urea Upon L. Acidophilus 4646. II. Studies on Anaerobic Glycolysis, J. D. Res. 30: 656, 1951.
5.
Pearlman, S. , and Hill, T.J.: Influence of Ammonia and of Urea Upon L. Acidophilus 4646. 1. Studies on Growth, J. D. Res. 30: 542, 1951.
6.
Florestano, H.J., Faber, J.E., and James, L.H.: Studies on the Relationship Between Diastatic Activity of Saliva and Incidence of Dental Caries, J. A. D. A. 28: 1799, 1941.
7.
Turner, N.C. , and Crane, E.M.: A Relationship Between Dental Caries and Saliva, J. D. Res. 23: 413, 1944.
8.
Ernström, E. : Ueber den Temperaturkoeffizienten der Stärkespaltung und die Thermostabilität der Malzamylase und des Ptyalins, Ztschr. f. physiol. Chem. 119: 190, 1922.
9.
Giri, K.V.: Studies in Enzyme Action. VI. Heat Inactivation of Pancreatic Amylase , J. Indian Inst. Sci. 15A: 117, 1932.
10.
Schneyer, L.H. : The Effects of Temperature Changes on Salivary Amylase Activity, J. D. Res. 30: 130, 1951.
11.
Schneyer, L.H. : The Role of the Cation in the Sodium Chloride Activation of Salivary Amylase, J. D. Res. 30: 599, 1951.
12.
Schneyer, L.H. : The Effect of Sodium and Potassium Ions on the Temperature Behavior of Salivary Amylase, Arch. Biochem. Biophys. 39: 65, 1952.
13.
Brown, D.E.S. , Johnson, F.H., and Marsland , D.A.: The Pressure, Temperature Relations of Bacterial Luminescence, J. Cell. & Comp. Physiol. 20: 151, 1942.
14.
Schneyer, L.H. : The Effects of Hydrostatic Pressure, Iodoacetic Acid, Iodacetamide, Quinine, and Urethane on Salivary Amylase, Arch. Biochem. Biophys. (Submitted for Publication), 1952.
15.
Myers, V.C., Free, A.H., and Rosinski, E.E.: Studies on Animal Diastases. VI. The Determination of Diastase (Amylase) in Blood, J. Biol. Chem. 154: 39, 1944.
16.
Bernfeld, P. , Staub, A., and Fischer, E.H.: Sur les enzymes amylolytiques XI. Proprietes de 1' a amylase de salive humaine cristalisee, Helv. Chim. Acta31: 2165, 1948 .
17.
Johnson, F.H. , Brown, D.E.S., and Marsland , D.A.: Pressure Reversal of the Action of Certain Narcotics, J. Cell. & Comp. Physiol . 20: 269, 1942.
18.
Johnson, F.H. , Eyring, H., and Williams, R.W.: The Nature of Enzyme Inhibitions in Bacterial Luminescence: Sulfanilamide, Urethane, Temperature, and Pressure, J. Cell. & Comp. Physiol. 20: 247, 1942.
19.
Johnson, F.H. , Kauzmann, W.J., and Gensler, R.L.: The Urethan Inhibition of Invertase Activity in Relation to Hydrostatic Pressure, Arch. Biochem. 19: 229, 1948.
20.
Gerber, C.: Action des sels de metaux alcalins sur la saccharification de l'empois d'amidon par les ferments amylolytiques, Compt. rend. Soc. biol. 71: 41, 1911.
21.
Ballow, G.A. , and Luck, J.M. : The Effects of Different Buffers on the Activity of β-Amylase, J. Biol. Chem. 139: 233, 1941 .
22.
Thoai, Ng.-V. , and Silhol-Bernere , M.J.: Sur les caracteres de l'amylase pancreatique purifee, Compt. rend. 223: 961, 1946.
23.
Johnson, F.H. , and Zobell, C.E.: The Acceleration of Spore Disinfection by Urethan and Its Retardation by Hydrostatic Pressure, J. Bact. 57: 359, 1949.
24.
Lefkowitz, W., and Singer, A.J.: The Effect of Urea and Diammonium Phosphate on the pH of the Tooth Surface, New York D. J. 17: 159, 1951.
25.
Sumner, J.B. , and Myrbäck, K.: The Enzymes, vol. I, New York, 1950, Myrbäck, K., and Neumuller, G., pt. 1, ch. 19, p. 653.