"The purpose of this 1944 manual is to provide field artillery personnel with basic principles of maintenance and inspection of radio sets and to provide field artillery radio repairmen with fundamental techniques and procedures necessary to...
United States Works Progress Administration (New York, N.Y.)
Tables of grid coordinates ... computed ... by the Project for the computation of mathematical tables ... The basic formulas upon which the tables have been developed are from Special publication no. 59, U.S. Coast & Geodetic Survey.--Pref.