128 ASYM}fETRrC ANALYSTS! 



5. The results of the toxic action of the optical isomers 

 of cinchonine on Paramecium caudatum bring into evi- 

 dence a difference in the physiological functions con- 

 trolled by the ectoplasm and those controlled by the en- 

 doplasm. Of the two isomers of cinchonine only the 

 laevorotatory showed the specific power of stimulating 

 ciliary movement. 



BIBLIOGRAPHY 



BACQ. Z., Erg. Physiol.. :i7, 82, 1935. 



BERNHEIM, F., J. Biol. Chem., Ill, 217, 1935. 



BOZLER, E., Arch. Protistenk., J,9, 163, 1924. 



BURTON, A., J. Cell. Comp. Physiol.. 9, 1, 1936. 



CANNON, W. and A. ROSENBLUETH, Autonomic Neuro-Effector Sys- 

 tems, New York, 1937. 



CROZIER. W., /. Gen. Physiol., 7. 1924. 



CUSHNY, A., J. Physiol.. SO, 176, 1903. 



, Biological Relations of Optically Isomeric Substances, Bal- 

 timore, 1926. 



EDLBACHER, S. and W. NEBER, Z. physiol. Chem.. 22Jf, 261, 1934. 



GAUSE, G. F., Raumaufbau des Protoplasmas, Erg. Biol., l-l 54, 1936. 



, Nature. ISS. 976, 1936. 



, and N. P. SMARAGDOVA, Biol. Zhiirn.. 7, 1938; Phy- 

 siol. Zooh. hi. 1939; Zool. Zhurn., 18, 1939; Bull. biol. et med. exp. 

 Moscow, 7, 105, 108, 1939. 



, and W. W. ALPATOV, Biol. Zhourn., 7, 763, 



1938. 



GLASER, O., J. Gen. Physiol., 7, 177, 1924. 



GOLD, H. and F. BROWN, -/. Pharmacol.. J}, 463, 1935. 



GREENWOOD, M., ,/. Physiol.. 11, 573, 1890. 



HEILBRUNN, L.. The Colloid Chemistry of Protoplasm. Berlin, 1928. 



HOAGLAND, H., J. Cell. Comp. Physiol., 10, 29, 1937. 



KALMUS, H., Paramecium, Jena, 1931. 



KOLTZOFF, N., Trans. Shaniavsky Univ. Biol. Lab.. 1, 189, 1915. 



KREBS. H. A., Ann. Rev. Biochem.. .>, 247, 1936. 



LANGLEY, N., J. Physiol., 33, 374. 1905. 



LEPESCHKIN, W., Zell-Nekrobiose und Protoplasma-Tod. Berlin, 1937. 



MACHT, D., Proc. Nat. Acad. Sci., U.S.A., 15, 63, 1929. 



METALNIKOFF, S.,Trans. St. Petersburg Biol. Lab., 11, 3, 1910. 



NACHMANSOHN, D., Nature. 1937. 



OSTWALD, W., Z. physikal. Chem.. 3. 369, 1889. 



PICTET, A and A. ROTSCHY, Ber. chem. Ges.. 37, 1225, 1904. 



SIZER, S., Physiol. Zool., 10, 327, 1937. 



STILES. W. and W. REES, Protoplasma. 22, 518, 1935. 



THOMAS, J. and F. FRANKE, J. Pharmacol. 23, 150, 1924; 34. Ill, 

 1928; .'/8, 199, 1933. 



