124 



remaining and the original quantity (64 gr.) is the weight 

 which has displaced 20 cu. cm. 



8. (2) The whole quantity of the powder is introduced, 

 and the level of the liquid rises to some division of the 



Fig. 1. Le Chatelier's Apparatus. 



graduated neck. This reading plus 20 cu. cm. is the vol- 

 ume displaced by 64 gr. of the powder, 



9. The specific gravity is then obtained from the 

 formula: 



Weight of Cement 

 Specific Gravity 



Displaced Volume. 



