The Absorption Coefficient of Soidtion for Monochromatic Radiation. 61 



Table 24 shows the comparison between Houstoun's measurements 

 and those of table 23. 



TABLE 24. A for Nickel Sul- 

 phate in Water (Figs. 21 a 



, 704//X/ 



.2000 



.1500 



.0500 _V- 



.0300. 



823 



.5 1.0 1.5 C 3-0 



FIG. 22. The A-c Curves for Nickel Sulphate in Water. 



