The Absorpt 'on Coefficient of Solution for Monochromatic Radiation. 43 

 TABLE 15. A for Cobalt Nitrate in Water. 



1056/i/i 



.0200 _ 



.0100 . 



.5 1.0 1.5 2.0 2.5 C 



FIG. 13. The A-c Curves for Cobalt Nitrate in Water. 



COBALT SULPHATE IN WATER. 



Seventeen solutions were prepared, varying in concentration from 

 c = 2.06 to c = 0.10. The A c curves show that throughout the whole 

 region of wave-lengths studied A is a constant for all values of c. 



