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Published online by Cambridge University Press: 16 March 2015
The author commenced his communication by stating, that he should divide his memoir into two parts, the first being devoted to a mere narrative of facts, the second to explanations of these facts.
In describing the geological features of the district, he noticed first the stratified or rudimentary rocks, and next the unstratified rocks.
The STRATIFIED consist of sandstone, shales, limestones, coal, and clays; which rocks seemed severally to abound or prevail, in the order now stated.