Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne . I.—Photograph of Claxheugh Rock, looking east, showing inascending order 1. Yellow Sands. 2. Marl Slate. 3. Compact Limestone. 4. Shell Limestone. The two middle members are absent towards the east of thesection, 212 EXPLANATION OF THE CLAXHEUGH SECTION.

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Keywords: ., bookcentury1800, bookdecade1860, booki, booksubjectnaturalhistory