Title: Navigation tables for mariners and aviators for all latitudes
Description: The 1931 (Third) edition and the 1942 (Sixth) edition are "for all latitudes."  Only the Third edition's title says so.
Subjects: Navigation, Tables
Time periods: Tables for computing angular altitude and azimuth of celestial bodies.  Can also be used in star identification, finding the distance between geographic points, and predicting the time of a body's rise or set.