American Institute of Mining, Metallurgical, And Petroleum Engineers
The book Mining And Metallurgy, volume 6 was written by author American Institute of Mining, Metallurgical, And Petroleum Engineers Here you can read free online of Mining And Metallurgy, volume 6 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Mining And Metallurgy, volume 6 a good or bad book?
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It is interesting to note that of the 13 coal-producing opera- tions of the Girard Estate during 1903, 2 are classed as wash- [14] Digitized by VjOOQIC ANTHRACITB-WASHBRIBS. 1277 eries; yet of the 11 collierieB, the production of 2 came in 1903 almost entirely from culm-banks, and 6 others very ma- terially augmented their output from this source. Thus the 2 washeries shipped 230,039.18 tons or a little more than 16 per cent, while coal reclaimed from culm-banks formed 30.7 ■-> n% ?J 00 5^ "* ^... CO ^r- "^ 00 iftiO ^ 1 ; « ^- 5^ Ji '^■'i-l'^ ^, 35 r- 1- 05 f -^ic ••— 'lO '— ' "^ ■ — ^th '^-t^ '■""ST' id 00 so ^_^ ip o ^__»c ,_^0 '^•^'^ti^'"!^ *. 9^'"^ ^'~*. ^*^ ^ , ^:^zi:^h ?gei;i3S«^ 3 ^ ^ *=> S gooMSgS I a So 5^ 5. ^o ^ «" I ss ^ 11 5 X per cent, of the total shipment of 1,515,213.14 tons, from all the operations of the Estate. The proportions of the various sizes of coal found in culm- banks varies in the different banks and also at times in the same bank. Table 11.
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