Table XIII 



Bottle 



Wt sea- 

 water at 

 time t 

 (grams) 



Diflf S Cal- 

 ebs 



(%o) 



In tap water 



I-20__. 

 J-21_.. 

 BB-31 

 Z-30... 

 C-41.. 

 1-20... 



DD-50 

 DD-40 

 Z-20... 

 BB-21_ 

 J-31_.. 

 D-31... 

 Y-20__ 

 D-41 _. 



+0. 028 

 +.036 

 +.027 

 +. 029 

 +.086 

 +.038 

 +.030 

 +.034 



79 



