followed by his two-volume work tilted Theory of the Earth in 1795, which expanded upon his 1788 work.

In 1802, Illustrations of the Huttonian Theory was published by John Playfair, which attempted to siphon the influence of Neptunism at the time. The Illustrations portrayed Hutton's "length and obscurely written book" in a concise, clear manner, "keeping Hutton's approach alive" following his death in 1797, as other scientists interpreted his theory in their own manner. Additionally, John Playfair would argue Plutonism being the correct