Star altitude curves.
Edition: 3d. ed. Latitude 0 t̊o 10 n̊orth.  Positioned for epoch 1 Jan. 1945 ...
Publisher: Weems system of navigation
Published: 1940
Place of publication: Annapolis, Md
Language: eng
Number of pages: 72
Subjects: Navigation (Aeronautics) -- Tables; Navigation -- Tables
Notes: At foot of t.-p.:  Copyright [by] P. V. H. Weems.
Tables and diagrams on lining-papers; 1 sheet (tables) laid in.