Gravity Observations from the Standpoint of the Local Geology
Introduction Since the work of systematically measuring the gravity in all parts of the United States was, about 30 years ago, undertaken by the United States Coast and Geodetic Survey, over 325 stations have been occupied. The results of the observations at some of these stations were published in reports by Hayford and Bowie 2 in 1912, by Bowie 3 in 1912, and by Bowie 4 in 1917, when 219 stations, including those previously covered, were considered. Observations at 85 additional stations are in process of publication by Major Bowie in a report of the Coast and Geodetic Survey now in press. References to the literature on gravity observations will be found in Bowie9s 1912 paper. The 1909 and 1910 papers by Hayford are based on the observations of deflections of the vertical as corrected for topography and isostatic compensation in the United States, whereas the reports by Hayford and Bowie and by . . .