K 



Anahjfis of the Air. 



Experiment LIX. 



ni 





From half a cubick inch of Amber, or 

 135 grains, was raifed 135 cubick inches 

 of air, or 3 8 grains, viz. ^ part of its 

 weight. 



Experiment LX 





From 142 grains of dry Tobacco was raifed 

 153 cubick inches of air, which is little 

 lefs than f of the whole weight of the To* 

 bacco; yet it was not all burnt, partbein 

 out of the reach of the fire. 





Experiment LXI. 



■ 



Camphire is a moft volatile fulphurcous 

 fubftance, fublimed from the Ro£a of a tree 

 in the Eafl-Indies. A dram of it, melted 

 into a clear liquor, at fome diftance from 

 the fire , and fublimed in the form of white 

 chryftals, a little above the liquor, it made 

 a very fmall expanfion, and neither gene- 

 rated nor abforbed air. The fame Mr. Boyle 

 found, when he burnt it in vacuo. Vol. 2. 

 p. <5o$. Ex- 













