Coast and Geodetic Survey

United States, a branch of the Treasury a charged — with the survey of the Atlantic, Gulf, and Pacifie coasts of the United States, including the coast of Alaska; the survey of rivers to the head of tidewater or ship navigation; deep-sea soundings, temperature and current observations along the coasts and throughout the Gulf Stream and Japan Stream flowing off from them; magnetic observations and gravity re search; determinations of heights by | geodetic leveling, and of geographical positions by lines of transcontinental. triangulation, which with other connealigg triangulations and observations for latitude, longitude, and azimuth, furnish points of reference for State surveys and connect the work on the Atlantic coast with that on the Pacific.