An attempt towards a natural history of the fossils of England [electronic resource] : in a catalogue of the English fossils in the collection of J. Woodward, M. D. Containing A Description and Historical Account of each; with Observations and Experiments, made in order to discover, as well the Origin and Nature of them, as their Medicinal, Mechanical, and other Uses. Part I. Of the Fossils that are real and natural: Earths, Stone, Marble, Talcs, Coralloids, Spars, Crystals, Gemms, Bitumens, Salts, Marcasites, Minerals, and Metals.