500 IMMUNO-CATALYSIS 



SoMMER, H.: Purification of Botulinus toxin. Proc. Soc. Exper. Biol. & 

 Med., 35:520-521, 1937. 



SoNNEBORN, T. M.: Ciliated protozoa: Cytogenetics, genetics, and evolu- 

 tion. Annual Review of Microbiology, 111:55-80, 1949. 



Spiegelman, S.: Nuclear and cytoplasmic factors controlling enzymatic 

 constitution. Cold Spring Harbor Symposia on Quantitative Biology, 

 11:256-277, 1946. 



Spiegelman, S., Reiner, J. M. and Cohnberg, Rosellen: The relation 

 of enzymatic adaptation to the metabolism of endogenous and exogenous 

 substrates. J. Gen. Physiol., 31:27-49, 1947. 



Spiegelman, S., Reiner, J. M. and Morgan, Ida: The apoenzymatic 

 nature of adaptation to galactose fermentation. Arch. Biochem., 13:113- 

 125, 1947. 



Stagey, M.: The chemistry of mucopolysaccharides and mucoproteins. 

 Advances in carbohydrate chemistry, Vol. II. 161-201. New York, Aca- 

 demic Press, 1946. 



Staub, H.: Die Adrenalin-Histamin-Regulation, gleichzeitig Beitrag zum 

 Antihistaminmechanismus. Helvet. Physiol. Pharmakol. Acta, 4:539- 

 550, 1946. 



Steers, E. and Sevag, M. G.: The mechanism of resistance to sulfona- 

 mides. IV. A comparative study of the amino acid metabolism of Staphy- 

 lococcus aureus in relation to the mechanism of resistance. Arch. Bio- 

 chem., 24:129-143, 1949. 



Stephens, T. W. W. and Myers, W. : Test tube reactions between cobra 

 poison and its antitoxin. Brit. Med. J., 1:620-621, 1898. 



Stern, K. G. and White, A.: Studies on the constitution of insulin. III. 

 The acetylation of insulin by ketene. J. Biol. Chem., i 22:37 1-379, 1938. 



Stoerk, H. C, John, Hedda M. and Eisen, H. N.: Turnover of serum 

 protein in adrenalectomized rats. Proc. Soc. Exper. Biol, and Med., 

 66:25-28, 1947. 



Stokinger, H. E. and Heidelberger, M.: The quantitative theory of the 

 precipitin reaction. VI. The reaction between mammalian thyroglobulin 

 and antibodies to homologous and heterologous preparations. J. Exper. 

 Med., 66:251-272, 1937. 



Stoll, a. and Wiedemann, E.: Die optische Aktivitat des Chlorophylls. 

 Helvet. Chim. Acta, 16:307-314, 1933. 



Straub, F. B.: Crystalline lactic dehydrogenase from heart muscle. Bio- 

 chem. J., 34:483-486, 1940. 



Straus, O. H. and Goldstein, A.: Zone behavior of enzymes. Illustrated 

 by the effect of dissociation constant and dilution on the system cho- 

 linesterase-physostigmine. J. Gen. Physiol., 26:559-585, 1943. 



Stumpf, p. K. and Green, D. E.: 1-Amino acid oxidase of Proteus vul- 

 garis. J. Biol. Chem., 153:387-399, 1944. 



Sumner, J. B.: The isolation and crystallization of the enzyme urease. J. 

 Biol. Chem., 69:435-441, 1926. 



