492 IMMUNO-CATALYSIS 



Pfeiffer, R. and Friedberger, E.: Weitere Beitrage zur Theorie der 

 bakteriolytischen Immunitat. Zentralbl. f. Bakt. Abt. I., Orig., 34:70-84, 

 1903. 



Pfeiffer, R. and Friedberger, E.: Weitere Beitrage zur Frage der Anti- 

 sera und deren Beziehungen zu den bakteriolytischen Ambozeptoren. 

 Zentralbl. f. Bakt. Abt. I., Orig., 37:125-138, 138-144, 1904. 



Pfeiffer and Marx: Die Bildungsstatte der CholeraschutzstofiEe. Ztschr. 

 Hyg. u. Infektionskr., 27:272-297, 1898. 



PijoAN, M.: The action of testicle, kidney, and spleen extracts on the in- 

 fective power of bacteria. J. Exper. Med., 53:37-52, 1931. 



PiLLEMER, L., EcKER, E. E. and Martiensen, E. W.: The specificity of 

 keratin derivatives. J. Exper. Med., 70:387-397, 1939. 



PiLLEMER, L., EcKER, E. E., Myers, V. C. and MuNTv^T^LER, E.: Chemi- 

 cal and immunological studies of the effects of radiant energy of oxida- 

 tion on crystalline urease. J. Biol. Chem., 123:365-374, 1938. 



PiLLEMER, L., EcKER, E. E. and Wells, J. R.: The specificity of keratins. 

 J. Exper. Med., 69:191-197, 1939. 



PiLLEMER, L. and Wartman, W. B.: The clinical behavior, incubation 

 period, and pathology of tetanus induced in White Swiss mice by 

 injection of crystalline tetanal toxin. J. Immunol., 55:277-281, 1947. 



PiLLEMER, L., WiTTLER, RuTH and Grossberg, D. B.: The isolation and 

 crystallization of tetanal toxin. Science, 103:615-616, 1946. 



PiRiE, A. : A hyaluronidase and polysaccharide from tumors. Brit. J. Exper. 

 Path., 23:277-284, 1942. 



PoLANYi, M. and Szabo, A. L.: On the mechanism of hydrolysis. The alka- 

 line saponifications of amylacetate. Tr. Faraday Soc, 30:508-512, 1934. 



Ponder, E.: Personal communication, 1943. 



Ponder, E.: The mechanism of the inhibition of hemolysis. V. Inhibitory 

 processes occurring in the course of simple hemolytic reactions. J. Gen. 

 Physiol., 29:203-218, 1946. 



Pope, C. G. : Disaggregation of proteins by enzymes. Brit. J. Exper. Path., 

 19:245-251, 1938. 



Pope, C. G.: The action of proteolytic enzymes on the antitoxins and pro- 

 teins in immune sera. I. True digestion of the proteins. II. Heat dena- 

 turation after partial enzyme action. Brit. J. Exper. Path., 20:132-149; 

 201-212, 1939. 



Pope, C. G. and Healey, M.: A photo-electric study of reactions between 

 diphtheria toxin and antitoxin. Brit. J. Exper. Path., 19:397-410, 1938. 



Pope, C. G. and Healey, M.: The preparation of diphtheria antitoxin in 

 a state of high purity. Brit. J. Exper. Path., 20:213-216, 1939. 



Potter, V. R. and Elvehjem, C. A.: The effect of inhibitors on succinoxi- 

 dase. J. Biol. Chem., 117:341-349, 1937. 



PozERSKi, E. and Guelin, A.: Action empechante de I'ovalbumine crue 

 sur les ferments gelatinolytiques de quelques microbes anaerobies. C. R. 

 Soc. Biol., Paris, '128:504-506, 1938a. 



