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. 1880 edition. Excerpt: ... CHAPTER XIX. DUEATION OF THE BRITISH COALFIELDS. The astonishing increase in the consumption of coal within the last half century has kept pace with the advancement of various arts and sciences, and has necessitated a constant improvement in the methods and appliances used in its extraction. Our ...
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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. 1880 edition. Excerpt: ... CHAPTER XIX. DUEATION OF THE BRITISH COALFIELDS. The astonishing increase in the consumption of coal within the last half century has kept pace with the advancement of various arts and sciences, and has necessitated a constant improvement in the methods and appliances used in its extraction. Our knowledge of the mineral resources of this and other countries has during the same time been placed on a footing so much more definite than formerly, as to excite in the reflecting mind, conversant with the heavy drain now making on our coalfields, a reasonably-founded anxiety as to their duration. Contented security may in its ignorance of the facts assume, and persons interested in maintaining their own special trade, may represent that the coal-seams are "practically inexhaustible," and may stigmatise as "alarmists" those who would invite attention to the bearings of a question so vital to our immediate posterity; but a fair examination of the statistics above set forth, and of the local conditions of our coalbearing districts, will show that at least the time for prudent forethought has arrived. In the last few years, accurate surveys have shown the certain boundaries of most of our coalfields, formed by the actual rise to the surface of the ground of the foundation rocks, in and under which no coal at all is contained. In some other instances they exhibit a surface boundary, beyond which much may be hoped for, but where in many cases the uncertainty and expense will greatly reduce the value of the extended territory, or, in other words, increase the average charge at which the coals will be raised. Knowing, therefore, most of the edges, and pretty nearly the depth of all our recognised stores of coal, let us remember at what rate we are now...
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