262 



TABLES FOR REFERENCE. 



Table for Acetic Acid. 



The difference between the specific gravities of water and 

 of glacial acetic acid is small. The mixture of the two sub- 

 stances has the peculiarity that its specific gravity increases 

 up to a certain point with the addition of acid, and then 

 decreases to that of the pure acid. If the specific gravity is 

 above 1.055, an< ^ * s increased by the addition of water, the 

 acid is above 78$ ; if it is decreased by the addition of 

 water, the acid is below 78$. 



Table for Diluting Alcohol. 



100 volumes of alcohol of % 



