Author: ASHBURNER, Charles A. (1854-1889).:
Title: The geologic distribution of natural gas in the United States. With an appendix relating to the composition and fuel-value of natural gas and the extent of the natural-gas business in the vicinity of Pittsburgh.
Description: [St. Louis, 1886.] 8vo, 23.4cm. Pp. 32, 2 folding maps, 2 folding tables, notes & refs. Paperbound, orig. stiff wrappers, with nice pictorial and decorated front cover. Fine. - "Read before the American Institue of Mining Engineers, St. Louis, October 12, 1886."

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