Tt the ingenious Reader* 
an honour to our 3\(ation, 
and a benefit to fuch ingenu 
om perfons as would become 
further enquirers intothe^ 
various modes of Matures 
admirable worses, and tbc~> 
curious Imitators thereof : I 
readily yeilded to the thing 
fo urged, and with the af- 
fiftance of two worthy 
friends (well acquainted 
with my defign,) we then 
began it, and many examu 
nations of the materialls 
themfelves, & their agree* 
ments with feverall Au- 
a thors 
