NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Heath vernier sextant
From: Paul Hirose
Date: 2012 Jul 24, 15:10 -0700
From: Paul Hirose
Date: 2012 Jul 24, 15:10 -0700
Stan K wrote: > Thanks, Ridge, for answering the question about the "pick" tool. Famed instrument maker W.F. Stanley calls the tool a "tommy-pin" in his 1901 book on surveying instruments. His description of the vernier sextant, its testing and adjustment, may be worth reading. http://books.google.com/books?id=h3pHAAAAIAAJ&pg=PR11 --