Published online by Cambridge University Press: 01 May 2009
1. The reply by the Rev. O. Fisher (Geological Magazine, June, 1913, p. 250) to Sir Thomas Holland's note leads me to ask permission to place the geodetic case before your geological readers. I ask geologists to give a hearing to a geodetic computer.
page 387 note 1 Although Hayford's theory is the nearest approach to truth that has yet been made, it does not afford a complete explanation of every observed anomaly. In my paper on the origin of the Himalayas I corrected all geodetic results in accordance with the Hayfordian system, and I then regarded the uneliminated residuals as indications of actual departures from isostasy. Mr. Fisher calls attention to a change in the observed value of g at Dehra Dun that has taken place between 1870 and 1904. This change is, however, apparent only; it is due to the recent introduction of a correction for the vibration of the brick pillar upon which the pendulum is swung.