®0tttintofQXMlitit8* 3* 

 more barren than the Mechanical. To 

 which allegation lanfwer, that, be- 

 fides that thefe Jaft nam'd Principles 

 are more numerous, as taking in the 

 Pofture, Order, and Scituation, the 

 Reft, and,aboveall,thealmoft infi- 

 nitely diverfifiable Contextures of 

 the (mall parts , and the thence re- 

 fulting ftru&ures of particular bodies, 

 and fabrick of the world : Be fides 

 this, I fay, each of the three Me- 

 chanical Principles., fpecified in the 

 obje&ion, though but one in name » 

 is equivalent to many in effcft ■> as 

 Figure, for inftance, comprehends 

 not only Triangles, Squares, Rhom- 

 bufles. Rhomboids, Trapezions, and 

 a multitude of Polygons, whether 

 ordinate or irregular; but, betides 

 Cubes, Prifmes, Cones, Spheres,Cy- 

 linders, Pyramids, and other Solids 

 of known Denominations, a fcarce 

 numerable multitude of hooked, 

 branched, EeMike, fcrew-like, and 

 other irregular bodies * whereof 

 though thefe, and fome others, have 

 diftinft appellations, yet the greateft 

 C 4 part 



