af Comical fttyctptiatfjom 17 



CHAP. IV. 



BEfore Idifmifs that way of Preci- 

 pirating, that depends upon the 

 unwieldinefs which the Precipitant 

 gives to the body it is to (hike down, 

 it may not be impertinent., efpecially 

 in reference to the foregoing part of 

 this Paper 5 toconfider,that>perhaps in 

 divers cafes the Corpufcles of a dif- 

 fblved body may be made unfit to be 

 any longer fuftained in the Menftru- 

 um, though the Precipitant adds very 

 little to their bulk, or atleaftmucfo 

 more to their fpecific weight than to 

 it. For I have elfewere (hewn, that 

 in divers folutions made of bodys by 

 acid Menftruums, there are either ge- 

 nerated or extricated many fmall 

 Aerial particles 5 and it will be eafily 

 granted, that thefe may be fmall e- 

 nough to be detained in the pores of 

 the liquor and be inviiible thereof we 

 confider, what a multitude of aerial 

 and formerly imperceptible bubbles 

 % 4 is 



