The Contents and Method ofthis following Discourse.

The first Books

Chap. I .•*" | ^He excellency of these Arts.

I Why t/jey were concealedby the Ancients. The Authors thathave treated of them. •

Ch. 2. Concerning the name of this Art.That it may properly be Jlyled liberal.The fubjeQ and nature of it.

Ch. 5. Of the first Mechanical faculty tthe Ballance. *•

Ch. 4. Concerning the second Mechanicsfaculty , the Leaver.

Ch. 5. How the natural motion of livingcreatures is conformable to these arti-ficial rules.

£h. 6 .