Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb. "Synoptical résumé of patented improvements having reference to the distillation of oils from coals, bitumens, and schists": p. 141-147
Read book The Manufacture of Photogenic Or Hydro-Carbon Oils, From Coal And Other Bituminous Substances, Capable of Supplying Burning Fluids for free
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