272 



H. HAGER, W. HIRSCHBERGER AND A. BREIT 







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La 





Mi 



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Ml 



Fi 





Osi 



Fig. 13. Cerebral cortex, 218 hr after exposure to 7,500 r. Large reactive astrocytes 

 (As) in the border zone of a necrotic area. Intracytoplasmic fibrils (Fi) can be seen 

 in the perinuclear regions. Osi, osmiophilic inclusions; Mi, mitochondria. X 4,000. 



