Page:De re metallica (1912).djvu/187

This page has been proofread, but needs to be validated.
BOOK V:
143

such an angle as represents the slope of the mountain, so that its lower end may reach the end of the straight cord; then he stretches a third cord

A—Standing plummet level. B—Tongue. C—Level and tongue.


This article is issued from Wikisource. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.