Publisher's Synopsis
Excerpt from A Treatise on Earthy and Other Minerals and Mining
Clays, how derived and formed - Decomposition of Basalt, of Rocks in Iceland - Brick Clays of the Drift - Analyses - Clays of the Tertiary Strata, Bovey Tracey - China Stone and China Clay of Cornwall and Devon - Comparison With other China Clays Kimmeridge Clay - Permian Marls and Clays - Clays of the Coal measures - Analyses - Manufactures of, in North of England, North Wales, Shropshire - Colouring of Clays and their Products.
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