Co^roftbenefe anD Co?rofiWKtp* 49 



minute ^ and capable of letting in 

 fomegrolTer Corpufcles, yetifthcfe 

 Were, for want of folidity or rigid- 

 nefs, too flexible 3 or were of a fi- 

 gure incongruous to that of the 

 Pores they (hould enter 5 the DiflTo- 

 Iution would not infue j as it hap- 

 pens when pure Spirit of Wine is in 

 the cold put upon Salt of Tartar, or 

 when Aquafortis is put upon powder 

 of Sulphur. 



The fecond Qualification of a Cor- 

 rodible Body |$ 3 that its confident 

 Corpufcles be of fuch a Bulk and 

 Solidity , as does not render them 

 iincapable of being disjoynd by the 

 a&ion of the infinuating corpufcles 

 of the Menftruum. Agreeable to 

 this and the former Observation is 

 the pra&ice of Chymifts 5 who of- 

 tentimes, when they would have a 

 Body to be wrought on by a Men- 

 ftruum otherwife too weak for it in 

 its crude eftate, difpofe it to receive 

 the a&ion of the Menftruum by pre- 

 vioufly opening it, ( as they fpeak ) 

 that is 5 by enlarging the Pores,, tna- 

 D i king 



