FROZEN SOLUTIONS. 



197 



JL NITRATE IN WATER. 



-30' 



-60* 





-90' 



A 



/ V 



H20" 



yv 



-150 



A 



-185" 









idoo 



leloo 



zoloo 



.6oU 



.561^. 



.52U 



FIG. 98. 



no shift here, but increasingly better resolution. The very dim inter- 

 mediate bands resolved to form series of approximately the same 

 interval. 



It was thought that by reversing the cooling process the spectra 

 might go through the same forms at the same temperatures, which 



TABLE 119. Uranyl nitrate in water frequencies and average intervals of fluorescence bands. 



