BIBLIOGRAPHY 251 



SEIFRIZ, W. 1918. Observations on the structure of protoplasm by the 

 aid of raicrodissection. Biol. Bulletin 34:307. 



SHEARER, C. 1910, A. Studies on the action of electrolytes on bacteria. 

 Part I. The action of monovalent and divalent salts on the conduc- 

 tivity of bacterial emulsions. Jour, of Hygiene 18:337. 



SHEARER, C. 1919, B. The action of electrolytes on the electrical conduc- 

 tivity of the bacterial cell and their effect on the migration of these 

 cells in the electrical field. Proc. Camb. Phil. 8oc. 19:263. 



SHEARER, C. 1919, C. On the action of electrolytes on the conductivity 

 of bacterial emulsions and their effect on the rate of migration of 

 bacteria in an electric field. Contributions to medical and biological 

 research dedicated to Sir William Osier in honour of his seventieth 

 birthday, July 12, 1919. 



SHORTER, S. G. 1909. The surface separation from solutions of saponin, 

 peptone and albumin. Phil. Mag. 15:560. 



SMALL, J. 1918. Changes of electrical conductivity under geotropic stim- 

 ulation. Proc. Roy. Soc. Lond. 90:349. 



SPAETH, R. 1916. The vital equilibrium. Science N. 8., 43:502. 



STEWART, G. N. 1897. Elektrische Leitfiihigkeit thierische Fliisslgkeiten. 

 ZentralU. f. Physiol. 2:332. 



STEWART, G. N. 1899. The behavior of the haemoglobin and electrolytes 

 of the colored corpuscles when blood is laked. Jour, of Physiol. 24:211. 



STEWART, G. N. 1909. The mechanism of haemolysis with special reference 

 to the relation of electrolytes to cells. Jour, of Pharm. and Exper. 

 Therap. 1:49. 



STILES, W. and JORGENSON, I. 1914. The measurement of electrical con- 

 ductivity as a method of investigation in plant physiology. New 

 Phytologist 13:226. 



STONE, G. E., and CHAPMAN, G. H. 1912. Electrical resistance of trees. 

 Twenty-fourth annual report of the Mass. Agric. Exp. Sta. 



Szucs, J. 1912. Experimentelle Beitrage zu einer Theorie der antagon- 



ischen lonenwirkungen. Prings. Jahrb. f. wiss. Bot. 52:85. 

 TASHIRO, S. 1917. A chemical sign of life. Chicago. 

 TAYLOR, W. A., and AGREE, S. F. 1916. Studies in the measurement of 



the electrical conductivity of solutions at different frequencies. VII. 



Investigations of the true and apparent resistances, etc. Jour. Am. 



Chem. Soc. 38:2415. 

 TAYLOR, W. A., and CURTIS, H. L. 1915. An accurate method for the 



measurement of the conductivity of electrolytes. Phys. Rev. 6:61. 

 THOMAS, H. S. 1918. Comparative studies on respiration. IV. The effect 



of ether on the respiration of wheat. Jour. Gen. Physiol. 1:203. 



