I.—On the Stratigraphical Relations of the Dufton Shales and Keisley Limestone of the Cross Fell Inlier

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Abstract
Notwithstanding all that has been written concerning the Keisley Limestone, its exact relations with the older Dufton Shales have never been clearly ascertained. I accordingly devoted a few days of the Easter vacation to the study of these relations in company with Messrs. W. G. Fearnsides, R. H. Rastall, and T. O. Bosworth, whose help I gratefully acknowledge.