127 



REFERENCES 



(18) SYMON, K. R. Thesis (unpublished), Harvard University (1948): See also ROSSI, B. 

 "High Energy Particles." (Prentice Hall. New York. 1952) 



(19) IGO, G. J., CLARK, D.D. , and EISBERG, R. M. "Statistical Fluctuations by 31.5-Mev 

 Protons." Universi ty of Ca li fornia Radiat ion Laboratory Report 2031 (November 1952); 

 Phys. Rev. 89, 879 (1953) 



(20) LIBBY, W. F. "Radiocarbon Dating." (University of Chicago Press, Chicago, 1952) 



