Transactions of the American Philosophical Society . ure) andfrom their great size, this is hardly probable. We have foundthem above four feet in length, and eight broad, and bent intovarious portions of cylinders, indeed in some quarries thereis scarcely a stone of the rag which does not contain a frag-ment. If they be supposed to be leaves, they are certainlyvery different from those linear leaves, whose impressions arenot uncommon in the coal shale. Thus far we have in some measure succeeded in unravel-ling the intricacies occasioned by these mysterious relics of aformer creation. But still
Transactions of the American Philosophical Society . ure) andfrom their great size, this is hardly probable. We have foundthem above four feet in length, and eight broad, and bent intovarious portions of cylinders, indeed in some quarries thereis scarcely a stone of the rag which does not contain a frag-ment. If they be supposed to be leaves, they are certainlyvery different from those linear leaves, whose impressions arenot uncommon in the coal shale. Thus far we have in some measure succeeded in unravel-ling the intricacies occasioned by these mysterious relics of aformer creation. But still the numberless stains in the sand-stones, the blotches which appear in splitting them, and theperforations and cavities which occur among them, are suffi-cient proofs that we are acquainted with oidy a small part ofthe vegetable riches of that world. To patient investigation,and the concurrence of favourable circumstances, we leavetheir consideration, with a wish that the few hints put downmay encourage others to take up the subject—and Enpd by
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