ftain) feems to be of very intangling 

 figures. 



The fourth and laft qualification 

 requifite in a Volatile body is, that 

 the parts do loofely adhere * or at 

 leaf): be united in fuch a manner, as 

 does not much iodifpofe them to be 

 feparated by the fire in the form of 

 fumes or vapours. 



For he that confiders the matter^ 

 will eafily grant, that, if the contex- 

 ture of the corpufcles, whereof a bo* 

 dy confifts^ be intricate, or their co- 

 hesion ftrong, their mutual implica- 

 tion or their adherence to each o- 

 ther, will make one part hinder ano^ 

 ther from flying feparately away, and 

 their conjun&ion will make them too 

 heavy or unweildy to be elevated to- 

 gether, as intire though compounded 

 parts. Thus we fee, that in Spring, 

 or the beginning of Summer, a wind, 

 though not faint, is unable to carry 

 off the lighteft leaves of trees, be- 

 caufe theyftick faft to the bows and 

 twigs on which they grow, but in 

 Autumn, when that adhefion ceafes 5 



3*4 



