108 



NEUTRON EFFECTS ON ANIMALS 



about ten days, following irradiation, it is possible that the plasmas for 

 chicken 27 were not obtained at the proper times to demonstrate the rise 

 in concentration. 



Non-Irradiated Chickens. The changes in plasma composition for the 

 non-irradiated chickens, 69 and 80, are listed in Table III and presented 



TOTAL PROTEIN 



80 



O 

 X 



60 



40 



20 



<#) +7 



20 



40 



60 



DAYS 



Fig. 5. Composition of successive samples of plasma from non-irradiated chickens. 

 Ordinates: concentrations expressed in refractive increments X 10^ Abscissae: 

 days after irradiation. Chicken 69: O; chicken 80: D. Upper graphs: total pro- 

 tein concentration. Lower graphs: concentration of fibrinogen plus gamma glo- 

 bulin. 



graphically in Figs. 5 and 6. For both chickens there was an increase of 

 protein concentration during the week following the taking of the first 

 blood samples; the increase was greater for chicken 80, of lower initial 

 protein concentration, than for chicken 69. 



Like the irradiated chickens, the non-irradiated chickens showed little 

 variation in the concentrations of albumin and of alpha globulin plus beta 



