DETERMINATION OF THE WATER 



51 



Burner. If gas is not readily available an alcohol 

 lamp may be used. 



Paper. Parchment 5 by 5 inches; must be per- 

 fectly dry. 



Special Apparatus. As shown in figures. Refer- 

 ring to figure 35, A is a flask of a capacity of a httle 



over 75 c.c. C is a graduated tube, which is con- 

 nected with the flask A by means of a rubber 

 stopper B; F is a glass stopper ground into the 

 tube C. Each glass stopper is ground to fit a par- 

 ticular tube and will not properly fit other tubes. 

 Each stopper and tube should be marked, by the 



