ON ESTUARINE ORGANISMS 



REMOVING BLOOD 



CELLULAR CHARACTERISTICS 



COUNTING CELLS 



MEASURING PACKED CELL VOLUMES 



Figure 14.— The effect of ionizing radiation 

 on estuarlne organisms is studied at tiie 

 Radiobiological Laboratory. Organisms 

 are exposed to gamma radiation from a 

 cobalt 60 source which is contained in a 

 specially built irradiator. After exposure 

 to radiation, the organisms are subjected 

 to various biochemical and cellular tests. 

 Often, radiation-induced physiological 

 changes occur first in the blood. 



DETERMINING CELL TYPES 



15 



