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Report to the Home Secretary on a Visit to the Experimental Station for Trials with Explosives at Schalke in Westphalia. By Henry Hall and Joseph S. Martin, H.M. Inspectors of Mines. With Illustrations

Great Britain. - Home Office

出版	1896
URL	http://books.google.com.hk/books?id=yaehPQAACAAJ&hl=&source=gbs_api