BY MEANS OF THE RADIOMICROMETER. 



27 



90 

 80 

 70 

 60 



water-bands, and there is no evidence which indicates that a shift has 

 taken place, as is apparently the case with a few of the other bands for 

 hydrated salts. Whenever there is a shift of the band for a hydrated 

 salt, it is always towards the red. Near the end of the lju water-band 

 for calcium chloride (fig. 11), the solution is about 40 per cent more 

 transparent than the solvent. This is the greatest difference found 

 with any of the salts that we studied. Near 1.3ju (fig. 12), which is close 

 to the 1.25yu water-band, the solution is over 35 per cent more trans- 



50 



03 



H 



to 



03 



30 



. 



PH 



20 



10 



MgBr 2 ,3.60N 

 Deplh 20mm. 



0.9 



80 r 



0.95 



1.0 1.05 1.10 



FIG. 3. Wave-lengths. 



1.15 



70 



H-O 







a 



.2 50 



a 



40 







bO 



I 30- 



20 



10 



MgBr,,3.60N 

 Depth 10mm. 



1.1 



1.15 



1.20 1.25 1.30 



FIG. 4. Wave-lengths. 



1.35 



1.40 



