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Updated: May 18, 2025


With rare and admirable candour he has, since this was written, yielded to the arguments of Mr. After the controversy between the Neptunists and the Vulcanists had been long carried on without definite results, there came a reaction against all speculative geology.

The long controversy carried on during the latter part of the eighteenth century between "Neptunists," led by Werner on the one side, and "Vulcanists," led by Hutton and Playfair on the other, regarding the origin of such rocks as granite and basalt, was finally brought to a close by the triumph of the "Vulcanists," who demonstrated that such rocks are the result of igneous fusion; and that in the cases of basalt and its congeners, they are being extruded from volcanic vents at the present day.

But be that as it may, the theory that subterranean heat has been instrumental in determining the condition of "primary" rocks, and in producing many other phenomena of the earth's crust, has never been in dispute since the long controversy between the Neptunists and the Plutonists led to its establishment.

The followers of Werner came to be known as Neptunists; the Huttonians as Plutonists.

"This continually increasing expansive force must at length have overcome the resistance opposed by the tenacity and weight of the overlying consolidated strata. The Neptunists stoutly contended for the aqueous origin of volcanic as of other mountains.

Neptune's ravished secrets vindicate the Neptunists, while Pluto is relegated to the abode assigned him by classic myths, where he and his comrade, Vulcan, keep their furnaces alight and project their slag and smoke through many a roaring chimney. It tracks the wandering wind, and moves at ease, calmly as a surveyor with chain and compass, through the eddies of the cyclone.

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