A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding
From: Ed Popko
Date: 2017 Apr 19, 05:10 -0700
Thanks for pointing out Bowditch references to Gunther Rules.
So far, I han't found clues as to why this particular 'improved' set of rules is particularly advantageous to navigation as suggested by the engraving but I continue to dig.