History of the Yorkshire Geological And Polytechnic Society 1837 1887 With Bio
History of the Yorkshire Geological And Polytechnic Society 1837 1887 With Bio
James William Davis
The book History of the Yorkshire Geological And Polytechnic Society 1837 1887 With Bio was written by author James William Davis Here you can read free online of History of the Yorkshire Geological And Polytechnic Society 1837 1887 With Bio book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is History of the Yorkshire Geological And Polytechnic Society 1837 1887 With Bio a good or bad book?
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The principal points in the report referred to the lighting of mines and to the use of explosives. With respect to the former, Mr. Mitchell considered that a lamp of REV. WILLIAM TH011P. 431 the Mueseler type, fitted with a bonnet, was most suitable, and he agreed with the commission that a quick explosive was the most desirable, and with the explosive recommended viz. , gelatine dynamite which is fired surrounded by water, the effect being instantaneous and giving off no flame. At a meeting he...ld at Barnsley in 1866, Dr. H. C. Sorby read a paper on some remarkable properties of the characteristic constituents of steel. The microscopical examination of suitably prepared speci- mens of iron and steel shows that there are two well marked constituents. One of these is comparatively soft, and is iron which is free from carbon ; the other is intensely hard, and probably con- tains combined carbon, since it occurs in white cast iron, blistered steel, and other varieties known to contain carbon in that state.
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