288 



A. C. UPTON, M. A. KASTENBAUM, AND J. W. CONKLIN 



50 75 100 125 150 



Time after exposure (weeks) 



175 



Fig. 5. Mortality rates of LAF^ males dying with neoplastic diseases in relation to time 

 after y-irradiation. 



O Non-irradiated control (230 mice); D 223 rads (178 mice); O 368 rads (259 mice); 

 A 578 rads (228 mice); ^ 697 rads (148 mice). 



25 



75 100 125 150 175 



Time after exposure (weeks) 



200 



Fig. 6. Mortality rate of LAF^ females dying with neoiDlastic diseases, in relation to time 

 after y-irradiation. 



O Non-irradiated control (208 mice); Q 223 rads (203 mice); • 368 rads (276 mice; 

 A 578 rads (268 mice); A 697 rads (200 mice). 



