FLUORESCENCE STUDIES OF NUCLEOPROTEINS 



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Fig. 10(a). 



Fig. 10(b). 



Fig. 10. — Ultraviolet autofluorescence (b) and absorption (a) in the Ividney cells of a 

 monkey (culture in vitro) 48 hr after irradiation (dose 2,000 r) (A = 26.5 mp). 



