On a Section of the Lower Greensand at Seend, near Devizes

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Abstract
Having during the past winter made some observations on the sections exposed in the cutting of the road, at Seend, near Devizes, I now send you the result. I feel it important that this information should be recorded, or it will he altogether lost; the section having already been for some time covered up. The cutting was not more than twelve feet deep. It exhibited the Lower Greensand reposing unconformably on Kimmeridge clay. The following is a detail of the stratification:— 1. Kimmeridge clay, having at the top masses of imperfect limestone, or septaria, bored by the Lithodomus shells of the lower greensand; the shells themselves being preserved in situ , and the holes filled up with the ferruginous sand. 2. Masses of imperfect, gravelly sandstone and sand, not very ferruginous, containing pebbles of quartz, &c. and numerous fossils. 3. Dark green and brown sands. 4. Iron sandstone, with fossils. 5. Yellowish sand. 6. Iron sandstone. 7. Sands, &c. The whole surmounted with a patch of yellow, brashy clay of a few acres in extent. The Kimmeridge clay has the usual appearances of that stratum, and contains many specimens of Ostrea deltoidea , Sow., Ammonites , &c.

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