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This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

| Ch. 6. Concerning the Wheel. | |
| Ch. 7. Concerning the Pulley. | |
| Ch. 8. Of the Wedge. | |
| Ch. 9. Of the Screw. | |
| Ch. 10. An inquiry into the magnificent works of the Ancients, which, much exceeding our later times, may seem to infer a decay in these Mechanical arts. | |
| Ch. 11. That the Ancients had divers motives and means for such vast magnificent works, which we have not. | |
| Ch. 12. Concerning the force of the Mechanic faculties; particularly, the Balance and Lever. How they may be contrived to move the whole world, or any other conceivable weight. | |
| Ch. 13. Of the Wheel, by multiplication of which, it is easy to move any imaginable weight. | |
| Ch. 14. |