Abstract

The true position of the well-known Plant-bed at Gristhorpe Bay, below the grey limestone, was first pointed ont by Prof. Williamson, and afterwards by Dr. Wright; and Mr. Leckenby showed that all the Plants hitherto referred to the Upper Sandstone, Shale, and Coal belong to the Lower Sandstones and Shales, but few Plants having been found in the true Upper Sandstones and Shales overlying the grey limestone. The author gave lists of fossil Plants occurring in the two sets of strata, as well as of those occurring at the separate localities; and he concluded by describing some new and some imperfectly known species of Ferns.

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