XVIII. Account of a lithological survey Schehallien, made in order to determine the specific gravity of the rocks which compose that mountain
- 31 December 1811
- journal article
- Published by The Royal Society in Philosophical Transactions of the Royal Society of London
- Vol. 101, 347-377
- https://doi.org/10.1098/rstl.1811.0020
Abstract
The astronomical observations made on the mountain Schehallien, in 1774, were confessedly of great importance to science. They ascertained the power of mountains to produce a sensible disturbance in the direction of the plumb-line; of consequence, they proved the general diffusion of gravity through terrestrial substances, and afforded data for determining the medium density of the earth, compared with that of the bodies at its surface. The skill with which this very delicate experiment was conducted by Dr. Maskelyne, and the ingenuity with which the results were deduced by Dr. Hutton, were worthy of the objects in view, and of the reputation which these distinguished men have acquired in their respective departments of the mathematical sciences.Keywords
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