Abstract
So laboriously minute have been the researches of the Officers of the Geological Survey of Great Britain, that it is only where some fresh sections have been subsequently exposed by the operations of nature or of man that any material additions or corrections of that Survey can be looked for. A case of the kind has lately occurred in Herefordshire, revealing a small protrusion of Silurian rocks in the midst of the Old Red Sandstone, and accompanied by circumstances of some geological interest. A quarry having been opened near the base of the Old Red Sandstone, a few hundred yards west of Hagley House, near Lugwardine, and a deep drain having been cut from the quarry towards the S.E., the junction-beds of the Old Red Sandstone and of the Upper Ludlow Rock were unexpectedly exposed. This circumstance attracted the notice of M. J. Scobie, Esq., of Hereford, to whom I am indebted for having my attention drawn to the spot, and for many interesting organic remains and geological details which his residence in the vicinity enabled him to collect. I must also express my obligations, and those of the other geological friends who accompanied me, to Robert Biddulph Phillipps, Esq., the owner of the land, who kindly caused part of the quarry to be re-opened for our inspection.

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