OSMO-REGULATION 



241 



REFERENCES 



ANDREASSI, G. , 1939 - "Effect of saline solutions on the development of eggs of Amblystoma. " Boll. Soc. Ital. Biol. Sperm. 

 14:195. 



BACH>MNN, E. L & J. RUUNSTROM, 1912 - "Der osmotische Druck wahrend der embryonalentwicklung von Rana temporaria. 

 PQuger's Arch. f. Ges. Physiol. 144:287. 



HOLTFRETER, J., 1943 - "Properties and functions of the surface coat in amphibian embryos. " Jour. Exp. Zool. 93:251. 



KROGH, A., R. SCHMIDT -NIELSEN, & E. ZEUTHER, 1938 - "The osmotic behavior of frog's eggs and young tadpoles. " 

 Zeitschr. f. vergl. Physiol. 26:230. 



McCUTCHEON, M. G B. LUCKE, 1926 - "The kinetics of osmotic swelling in living cells. " Jour. Gen. Physiol. 9:697. 



NEEDHAM ]., 1931 - "Chemical Embryology. " 3 vols. Cambridge. 



PIIPER, E. , 1933 - "The development of Rana temporaria under the influence of cane sugar solutions. " Proc. Roy. Soc. B. 

 112:359. 



RICHARDS, O. W. , 1940 - "The capsular fluid of Amblystoma punctatum eggs compared with Holtfreter's and Ringer's solu- 

 tions. " Jour. Exp. Zool. 83:401. 



RINGER. S. GA. G. PHEAR, 1894 - "The influence of saline media on the tadpole. " Jour. Physiol. 17:423. 



VOSS, H. , 1926 - "Entwicklungsphysiologische Untersuchungen am Froschei (Rana fusca). " Arch. f. Ent. mech. 107:241. 



TABULATION OF DATA 



"The value of a scientific hypotJiesis depends, it seems to me, first on 

 the possibility of testing it by direct observation, or by experience; second, on 

 whether it leads to advance; and, lastly, on its elimination of certain possibil- 

 ities. " 



T. H. Morgan 



