British Manufacturing Industries Volume 2 download

British Manufacturing Industries Volume 2. G Phillips Bevan

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Author: G Phillips Bevan
Page Count: 62 pages
Published Date: 08 Feb 2012
Publisher: General Books
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781235826269
File size: 10 Mb
Download Link: British Manufacturing Industries Volume 2
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1876 Excerpt: ... black to reddish yellow; while in certain localities it is met with of a peaty character. When brown coal is newly mined, it is generally in a much damper state than coal of carboniferous age. It contains less carbon (the amount of this element varying from 50 to 70 per cent.), and more oxygen in proportion to the hydrogen than common coal; the hydrogen and nitrogen being in nearly the same proportion in both kinds. Owing to its composition, therefore, much water is formed in burning it, a property which diminishes its value as a fuel; still it is of great service where better kinds cannot be obtained at a moderate price. From some of its varieties paraffin oil and other products are now largely distilled in Germany, these products having a much closer resemblance to those obtained from wood than to those from ordinary coal. In the British Islands coal fields stretch over an area equal to about Js of their whole extent, and have hitherto produced an enormously larger quantity of coal than those of any other country on the face of the globe, although the workable deposits of the United States are of much greater extent. Our most northerly mining district is the little coal field of Brora, in Sutherlandshire, where a pit was first opened nearly three centuries ago. It happens to be of oolitic age, and although it has not been continuously worked, a large quantity of fuel has at various times been obtained from it. The great coal-bearing strata of Scotland, however, are of true carboniferous age, and stretch across the midland valley of the country from the shores of Fife and Haddington on the east to the coast of Ayrshire on the west; and within this belt of some 30 miles in width nearly all the productive coal seams are situated. But there is a not inconside...

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