8 0f tt>e ^ecframcal €mh$ 



Is diilblved by the other 5 of which I 

 (hall have occafion tq give ere long a 

 remarkable inftance. 



But it will beft appear, that the 

 abovementioned Theories of the 

 Peripatetieks and Chymifts are at 

 lea ft inefficient to fblve the Vh&no- 

 mena (many of, which were probably 

 not known to mod of them,and per- 

 haps not weigh'd by any^) if we pro- 

 ceed toobfervethe Mechanical ways^ 

 by which Precipitations may be ac- 

 counted for^ whereof I (hall at pre- 

 fent propofe fbme Number, and fay 

 fomewhat of each of them apart 5 

 not that I think all of them to be 

 equally important and comprehen- 

 five, or that I abfolutely deny^ that 

 any one of them may be reduced to 

 fbmeof the other i but that I think, 

 it may better elucidate the fubjedt, 

 to treat of them feverally, when I 

 (hall have premifed, that I would not 

 thence infer^that thcugh/or the moft 

 j>art,Nature does principally cffett 

 Precipitations by one or other of 

 thefe ways^ yet in divers cafes ftie 



may 



