REFERENCES 197 



Powell, V. E. (1951). Alkaline phosphatase in the regenerating annelid. 



AnaL Rec. Ill, 101-107. 

 Prosser, C. L. (1933). Correlation between development of behaviour and 



neuromuscular differentiation in embryos of Eisenia foetida Sav. 



y. comp. Neurol. 58, 603-641. 

 Prosser, C. L. (1934a). The nervous system of the earthworm. Quart. 



Rev. Biol. 9, 181-200. 

 Prosser, C. L. (1934b). Effect of the central nervous system on responses 



to light in Eisenia foetida Sav. jf. comp. Neurol. 59, 61-92. 

 Prosser, C. L. (1935). Impulses in the segmental nerves of the earthworm. 



y. exp. Biol. 12, 95-104. 

 Prosser, C. L., Brown, F. A., Bishop, D. W., Jahn, T. L. and Wulff, 



V. J. (1950). Comparative Animal Physiology. 888 pp. Saunders, 



New York. 

 Prosser, C. L. and Zimmerman, G. L. (1943). Effects of drugs on the 



hearts oi Arenicola and Lumhricus. Physiol. Zool. 16, 77-83. 

 Przlecki, S. J. (1923). L'excretion ammoniacale sur les invertebres dans 



les conditions normales et experimentales. Arch. Int. Physiol. 20, 



103-110. 

 PuYTORAC, P. De and Mauret, P. (1956). Determination de certaines des 



conditions ecologiques propres aux differents cilies parasites du 



tube digestif d' Allolobophora savigny G. et H. (Oligochete). Bidl. 



Biol. 90, 123-141. 

 Raffy, a. (1930). La respiration des vers de terre dans I'eau. Action de la 



teneur en oxygene et de la lumiere sur I'intensite de la respiration 



pendant I'immersion. C. R. Soc. Biol., Paris, 105, 862-864. 

 Ralph, C. L. (1957). Persistent rhythms of activity and O2 consumption 



in the earthworm. Physiol. Zool. 30, 41-44. 

 Ramsay, J. A. (1949a). The osmotic relations of the earthworm, y. exp. 



Biol. 26, 46-56. 

 Ramsay, J. A. (1949b). The site of formation of hypotonic urine in the 



nephridium of Lumbricus. y. exp. Biol. 26, 65-75. 

 Ratner, S. C. and Miller, K. R. (1959). Classical conditioning in earth- 

 worms, Lumhricus terrestris. y. comp. Physiol. Psychol. Sly 102-105. 

 Reed, R. and Rudall, K. M. (1948). Electron microscope studies on the 



structure of earthworm cuticles. Biochim. Biophys. Acta. 2, 7-18. 

 Rey, C. (1956). Les esters phosphores des muscles du lombric. Biochim. 



Biophys. Acta. 19, 300-307. 

 DE RoBERTis, E. D. P. and Bennett, H. S. (1955a). Some features of fine 



structure of cytoplasm of cells in the earthworm nerve cord. Union 



Int. Sci. Biol. B. 21, 261-273. 

 DE RoBERTis, E. D. P. and Bennett, H. S. (1955b). Some features of the 



sub-microscopic morphology of synapses in frog and earthworm. 



y. Biophys. Biochem. Cytol. 1, 47-58. 

 Roberts, M. B. V. (1960). Giant fibre reflex of the earthworm. Nature, 



Lond., 186, 167. 



