National security and the general staff / by Otto L. Nelson special publication Relation between plane rectangular coordinates and geographic positions / by Walter F. Reynolds special publication First-order leveling in Hawaii / by Howard S. Rappleye World war II : a concise history / by Roger W. Shugg and H.A. DeWeerd united states magnetic tables and magnetic charts for ... United States magnetic tables and magnetic charts for 1935 / Herb. Howe and Dav. G. Knapp special publication Leveling in Massachusetts, Rhode Island, and Connecticut / C.J. Clifford special publication Leveling in Florida / H.S. Rappleye special publication Magnetic surveys : purposes, methods and instruments. special publication Manual of traverse computation on the Transverse Mercator Grid / O.S. Adams, C.N. Claire training pamphlet Primary batteries : june, 1922 special publication Triangulation in Utah (1927 datum) / H.G. Avers special publication Triangulation in Wyoming (1927 datum) / C.N. Claire
