40 



Studies on Solution. 



TABLE 13. Cobalt Chloride in Propyl Alcohol ivith Water (Fig. 11). 



COBALT NITRATE IN WATER. 



Twenty-three solutions were prepared, varying in concentration 

 from c = 3.205 to c = 0.10. The A c curves for all wave-lengths show 

 that A is nearly constant for all concentrations. The A c curves 

 for the higher values of A indicate a very slight decrease in A as dilution 

 proceeds. This decrease is small, being of about the same magnitude 

 as the error in the determination of A. 



TABLE 14. Cobalt Nitrate in Water (Figs. 12 and 13). 



