OF LIQUIDS m VAPOUR. 13 



A mixture of this kind which had been fome time in 

 common air, and was become brown, abforbed fixed air 

 with great rapidity, without leaving any fenfible refi- 

 duum. But different portions of it abfdrbed this air 

 very differently. Six ounce meafures of fixed air which 

 had been a long time expofed to about an ounce of 

 rufted iron had now a refiduum of about three- fourths 

 of an ounce meafure, and it was wholly phlogifticated. 



A bladder containing about 20 ounce meafures of 

 fixed air was connedled with an earthen tube in which 

 were pieces of iron, and at the other end of the tube 

 was another bladder, but empty. The middle part of 

 the tube being made red hot, the bladder was preffed, 

 fo as to make the air pafs through the hot iron, and 

 thence it was driven back again, and the procefs re- 

 peated till the air was reduced to 6 ounce meafures, 

 and by wafhing in water to 5. It was flightly in- 

 flammable. 



No. 



