Call Number (LC) Title Results
C4.19-58 General instructions for precise and secondary traverse. 1
C 4.19:59 Grid systems for progressive maps in U.S
Grid system for progressive maps in the United States /
Grid systems for progressive maps in U.S. 		3
C4.19-59 Grid systems for progressive maps in U.S. 1
C 4.19:60 Study of map projections in general
A study of map projections in general /
Study of map projections in general. 		3
C4.19-60 Study of map projections in general. 1
C 4.19:60-69 Triangulation in Rhode Island / 1
C 4.19:61 Physical laws underlying scale of sounding tube
Physical laws underlying the scale of a sounding tube /
Physical laws underlying scale of sounding tube. 		3
C4.19-61 Physical laws underlying scale of sounding tube. 1
C 4.19:62 Triangulation in Rhode Island
Triangulation in Rhode Island /
Triangulation in Rhode Island. 		3
C4.19-62 Triangulation in Rhode Island. 1
C 4.19:63 Alaska magnetic tables and magnetic charts for 1920.
Alaska magnetic tables and magnetic charts for 1920
Terrestrial magnetism. : Alaska magnetic tables and magnetic charts for 1920 / 		3
C4.19-63 Alaska magnetic tables and magnetic charts for 1920. 1
C 4.19:64 Results of magnetic observations made by the United States Coast and Geodetic survey in 1919 /
Results of magnetic observations made by U.S. Coast and Geodetic Survey in 1919. 		2
C4.19-64 Results of magnetic observations made by U.S. Coast and Geodetic Survey in 1919. 1
C 4.19:65 Geodesy : instructions to light keepers on primary triangulation. 1
C4.19-65 Instructions to light keepers on 1st-order triangulation. 1
C 4.19:65/2 Instructions to light keepers on 1st-order triangulation
Instructions to light keepers on 1st-order triangulation. 		2
C 4.19:65/3 Instructions to Lightkeepers on First-Order Triangulation, Third (1936) Edition. 1
C4.19..65_3 Instructions to Lightkeepers on First-Order Triangulation, Third (1936) Edition. 1
C 4.19:65/936 Instructions to lightkeepers on first-order triangulation / 1