. General instructions for the field work of .. . Cornell UniversityLibrary The original of tinis book is intine Cornell University Library. There are no known copyright restrictions inthe United States on the use of the text. DEPARTMENT OF COMMERCE AND LABOR COAST AND GEODETIC SURVEY O. H. TITTMANN, Superintendent GENEEAL INSTRUCTIONS FOR THE FIELD WORK OF THE COASTAND GEODETIC SURVEY. WASHINGTON GOVERNMENT PRINTING OFFICE 1908 A 53 /A,3?35:6 OOlTTEl^TS. Paga Latitude and longitude determinations 5 Triangulation 6 Tertiary triangulation _ 6 Elevations
. General instructions for the field work of .. . Cornell UniversityLibrary The original of tinis book is intine Cornell University Library. There are no known copyright restrictions inthe United States on the use of the text. DEPARTMENT OF COMMERCE AND LABOR COAST AND GEODETIC SURVEY O. H. TITTMANN, Superintendent GENEEAL INSTRUCTIONS FOR THE FIELD WORK OF THE COASTAND GEODETIC SURVEY. WASHINGTON GOVERNMENT PRINTING OFFICE 1908 A 53 /A,3?35:6 OOlTTEl^TS. Paga Latitude and longitude determinations 5 Triangulation 6 Tertiary triangulation _ 6 Elevations by vertical angles 31 Precise leveling 39 Azimuth 39 Topography - - 42 Hydrography 48 Tide observations 78 Current observations 103 Magnetic observations 106 Descriptive reports 113 Progress sketches 116 Geographic names 117 General remarks - 119 Index 123 GENERAL INSTRUCTIONS FOR THE FIELD WORK OF THE COASTAND GEODETIC SURVEY. These instructions supersede all previous instructions and circularsupon the subjects treated and, together with the Laws and Regula-tions for the Government of the Coast and Geodetic Survey, are tobe followed in the execution of field work. O. H. TiTTMANN, 1, 1908. LATITUDE AND LONGITUDE DETERMINATIONS. 1. In Appendix No. 7, Report for 1897-98, Determinations oftime, longitude, latitude, and azimuth, the standard methods forthis work in the Coast and Geodetic Survey are decu31924004359745
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