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Read Jan. 26,
1764.
THE public hath of late been agreeably entertained with descriptions of many curious Fossils discovered in different parts of this kingdom: but very little hath been offered with a view to ascertain their origin and formation; a point of much greater importance to a curious mind, than the most accurate descriptions, or the neatest delineations. It may indeed be thought unnecessary at this time, to say any thing of the origin of extraneous Fossils in general; all our modern naturalists being fully convinced, that they are the exuviæ or remains of animals and vegetables, and the greater part of them of marine production.
But as to their particular origin and formation; in what manner they were produced in the recent, and how and with what matter they afterwards became impregnated in their fossil state; all this is a field of natural inquiry, that has been very much neglected, notwithstanding it is the most fertile and productive of useful and entertaining knowledge. Besides, were we to consider it in this view, the recent and fossil remains would be found to throw a mutual light upon each other, and the naturalist would not be so often at a loss to class every new fossil acquisition, of which the recent specimen is not to be found, especially whenever the fossil has any thing seemingly æquivocal in its formation, so as on a superficial imspection to render the matter doubtful, whether the body belongs to the animal or vegetable kingdoms, or indeed to either of them. One of the first note is the Belemnite, which has not until very lately been even ranked amongst the marine productions;
