PHYSICAL AND LITERARY. 195 



mto the truth of the firft propofition fo far 

 as it relates to quick-lime. 



Two drams of chalk were converted into 

 a perfedl quick-lime, and loft two fcruples 

 and twelve grains in the fire. This quickr 

 lime was flaked or reduced to a milky hquor 

 with an ounce of water, and then difTolved 

 in the fame manner, and with the fame acid, 

 as the two drams of chalk in the preceding 

 experiment. Six drams, two fcruples and. 

 fourteen grains of the acid finifhed the fatu- 

 ration without any fenfible effervefcence or 

 lofs of weight. 



It therefore appears from thefe experi- 

 ments, that no air is feparated from quick- 

 lime by an acid, and that chalk faturates 

 nearly the fame quantity of acid after it is 

 converted into quick-lime as before. 



With refped: to the fecond propofition, I 

 tried the following experiments. 



A piece of perfed: quick-lime made from 

 two drams of chalk, and which weighed one 

 dram and eight grains, was reduced to a very 

 fine powder, and thrown into a filtrated mix- 

 ture of an ounce of a fixed alkaline fait and 

 two ounces of water. After a flight di-r 

 geftion, the powder being well wafiied and 



dried. 



