I. On the attraction of the Himalaya Mountains, and of the elevated regions beyond them, upon the plumb-line in India

Abstract

1. It is now well known that the attraction of the Himalaya Mountains, and of the elevated regions lying beyond them, has a sensible influence upon the plumb-line in North India. This circumstance has been brought to light during the progress of the great trigonometrical survey of that country. It has been found by triangulation that the difference of latitude between the two extreme stations of the northern division of the arc, that is, between Kalianpur and Kaliana, is 5° 23' 42"*294, whereas astronomical observations show a difference of 5° 23" 37"'058, which is 5"-236* less than the former