A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Paul Bedel
Date: 2017 Mar 27, 01:47 -0700
You can find elements on Littlehales diagrams in "Monthly Weather Review", June 1905, pages 242 to 248 and january 1906, pages 7 to 9. You'll find them on the Internet (I don't remember the exact place), but I can send you copies if you wish.
Here is my proper study about diagrams (in french).