vl DEDICATION, 
velty and Variety will, I hope, yield 
you fome Entertainment, at the fame 
Time it affords me the defirable Op-* 
portunity of profeffing my moft hum-* 
ble Refped. 
The Fir ft Part of this Treatife dis¬ 
covers in the Particles of Matter com¬ 
peting Salts and faline Subftances, 
Properties whofe amazing Effeds 
would furpafs all human Belief or 
Conception, were we not convinced 
of their Truth by the ftrengeft ocular 
Demonftration. That beautiful Or¬ 
der in which they arrange themfelves 
and come together under the Eye, 
after being feparated and fet at Li¬ 
berty by Diffolution, is here deferib- 
ed and ihewn, - Did they amongft 
them all compofe but one Kind of 
Figure, however fimple, with Con- 
ftancy andRegularity, we fliould de- 
ii clare 
