. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. A branching sponge in a flint, from the white chalk. From the collection of Mr. Siphonia pyriformis. Elackdown Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lyell, Charles, Sir, 1797-1875. New York, D. Appleton and co.

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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1868