FLUORESCENCE STUDIES OF NUCLEOPROTEINS 



119 



r 



• • 



.'^ 



• • 



V- 



• ^« 



V • • •. -V^ 



r ; •••• 



Fig. 7(a). 



Fig. 7(b). 



Fig. 7. — Ultraviolet absoiption andautoflnoi'escence of cells of the lymph nodes of a rat 

 irradiated with a dose of 900 r, 4 hr after irradiation. 



(a) u.v. absorption (A = 265 ni/x), (b) u.v. fluorescence. 



