[ *44 ] 

 by the water before it was put to 

 the tell. 



98. I impregnated a jar full of 

 water with fixed air by means of 

 fait of tartar and fpirit of vitriol, 

 according to the method of Dr. 

 Hulme. I put fome leaves of a 

 vine in this water, which I found 

 covered with air-bubbles as foon a3 

 they were plunged under the water, 

 firft at the under furface, and foon 

 after at the upper furface alfo. 

 After ftanding about four hours in 

 a warm fun-fhine, I found a very 

 large quantity of air collecled at 

 the inverted bottom of the jar, 

 which I found by far the greateft 

 part to be fixed air, as it was ab- 

 forbed in the water by making. I 

 put to the nitrous teft that part of 

 it which remained unabforbed, 



and 



