22 



Studies on Solution. 



liquid, and the spectrum was photographed throughout the region from 

 600/zju to l,28(V/i on special plates with a glass-prism spectroscope. 

 Their spectrograms of the five alcohols used in this investigation show 

 the existence of a very complicated set of absorption bands and sharp 

 lines in this region of the spectrum. It was not possible, however, to 

 identify any of these bands and lines with the maxima of the curves in 

 figure 3, for these absorption curves have not been drawn with the 

 necessary detail. 



.0900 _ 



.0800 _ 



.0200- 



.0100 . 



600 700 800 900 1,000 



FIG. 4. The Absorption Curves for Cobalt Chloride in Water. 



