Sedgwick and Murchison, (1840) ‘On the Physical Structure of Devonshire, and on the Subdivisions and Geological Relations of its older stratified Deposits, etc’, from Trans Geol Soc
Sedgwick, Adam and Murchison, Roderick Impey (1840) ‘On the Physical Structure of Devonshire, and on the Subdivisions and Geological Relations of its older stratified Deposits, etc’, from Transactions of the Geological Society, Second series, vol. V, pt. 2, pp.633-702 + table across 3 pages + 9 pages of descriptions of woodcuts and plates + 9 plates numbered 50-58. (read June 14, 1837). Loosely stitched gatherings of text and plates between plain blue printers covers, ready for the binders. Clean age-toned uncut text, 28.5 22.5cm. Plates 50 and 51 are hand coloured foldout map of Devon and Cornwall (28.5 x 34cm) and sections (28.5 x 112cm); plates 52-57 are engraved plates of fossils drawn by J.D.C. Sowerby, and plate 58 is a lithograph of coral fossils by C. Hulllmandel. In very good condition.Sedgwick and Murchison’s paper was a major element in the ‘Great Devonian Controversy’.