The Coal Mines; Containing a Description of the Various Systems of Working and Ventilating Mines, Together with a Sketch of the Principal Coal Regions of the Globe, Including Statistics of the Coal Production Volume 3 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1876 edition. Excerpt: ...Field Of South Wales--Area Of Basin--Character Of Coals--Structure Of Basin--Coal Field Of Yorkshire--Extent And Thickness Of Strata--Names Op Famous Coals--Great Northern Coal Field--Area Of Basin And Depth Of Strata--Cumberland Coal Field--Accident At Workington Colliery--South Staffordshire Coal Basin--The "Black Country "--North Staffordshire Basin--Extent Of Same--Devonshire Coal--Forest Of Dean Basin--Other Coal Fields Of England--Scottish Coal Fields--Area Of Same--Thickness Of Coal Strata--Number Of Workable Beds--Brora Coal--System Of Mining In South Wales--Deep Shafts--Cost Of Sinking Monkwearmouth Prr--Time Occupied In SinkIng--Order Of Working Coal Beds--System Of Mining At ManChester, Barnsley And Staffordshire--Working The Thick Coal Of Dudley--Systems Of Working In Scotland. Of all the nations of Europe, Great Britain is the most powerful, because she is the richest. Although occupying a group of islands insignificant in area, she has spread her power over the entire globe, and it is her boast that the sun never sets on her possessions. The source of this great wealth and power is found in her manufacturing industry, and the main-spring of her industry lies in her stores of coal. The annual coal production of the United Kingdom is now more than one hundred and twenty-five million tons, and a very short calculation will serve to show what an important contribution this makes to her national wealth. The power developed in the combustion of a pound of coal is reckoned by engineers as equal to one million five hundred thousand foot-pounds. The power exerted by a man of ordinary strength during a day of labor is about the same, so that a pound of coal may be regarded as equivalent to a day's labor of a man. Hence three...