A Text-book of Ore and Stone MiningGriffin, 1897 - 744 Seiten |
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Seite 25
... quantities from gaseous emanations which come to the surface through in- numerable fissures , probably dislocations , in ... quantity very considerably . At Hönningen , about five - eighths of a mile ( 1 kilometre ) from the Rhine , an ...
... quantities from gaseous emanations which come to the surface through in- numerable fissures , probably dislocations , in ... quantity very considerably . At Hönningen , about five - eighths of a mile ( 1 kilometre ) from the Rhine , an ...
Seite 26
... quantity of gas is greater than was given off by the old emanation at the surface , and is reckoned to be 500 litres ( nearly 18 cubic feet ) per minute , corresponding to 720 cubic metres ( 25,428 cubic feet ) of gas , or 1 kilog ...
... quantity of gas is greater than was given off by the old emanation at the surface , and is reckoned to be 500 litres ( nearly 18 cubic feet ) per minute , corresponding to 720 cubic metres ( 25,428 cubic feet ) of gas , or 1 kilog ...
Seite 46
... quantities of metallic sulphides , such as iron pyrites , mispickel , marcasite , chalcopyrite , and galena . The quantity of gold produced from the quartz treated varies from 3 dwts . to 15 or 20 dwts . per ton , and the " Great Quartz ...
... quantities of metallic sulphides , such as iron pyrites , mispickel , marcasite , chalcopyrite , and galena . The quantity of gold produced from the quartz treated varies from 3 dwts . to 15 or 20 dwts . per ton , and the " Great Quartz ...
Seite 49
... quantity of stone treated by chlorination at Mount Morgan Second Report , p . 4 . + " Mount Morgan Mine , Queensland , " Trans . Amer . Inst . M. E. vol . 3x , ( 1891 ) , p . 133 . D in the twelve months ended 30th November , 1889 ...
... quantity of stone treated by chlorination at Mount Morgan Second Report , p . 4 . + " Mount Morgan Mine , Queensland , " Trans . Amer . Inst . M. E. vol . 3x , ( 1891 ) , p . 133 . D in the twelve months ended 30th November , 1889 ...
Seite 65
... quantities . In fact , Tagieff's spoutert in 1886 actually threw up , on the eighth day after oil had been struck , the immense quantity of 11,000 tons or 2 millions of gallons in twenty - four hours . The flow then diminished and was ...
... quantities . In fact , Tagieff's spoutert in 1886 actually threw up , on the eighth day after oil had been struck , the immense quantity of 11,000 tons or 2 millions of gallons in twenty - four hours . The flow then diminished and was ...
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Seite 53 - KNOW YOUR OWN SHIP. BY THOMAS WALTON, NAVAL ARCHITECT. Specially arranged to suit the requirements of Ships' Officers, Shipowners, Superintendents, Draughtsmen, Engineers, and Others. This work explains, in a simple manner, such important subjects as: — Displacement. — Deadweight.— Tonnage.— Freeboard. —Moments. — Buoyancy.— Strain Structure.— Stability.— Rolling.— Ballasting. — Loading. — Shifting Cargoes. — Admission of Water.— Sail Area.
Seite 43 - The Micro-Structure of Metals and Alloys. — Economic Considerations. " No English text-book at all approaches this in the COMPLETENESS with which the most modern views on the subject are dealt with. Professor Austen's volume will be INVALUABLE, not only to the student, but also to those whose knowledge of the art is far advanced.
Seite 31 - I. — ALKALIES AND ALKALINE EARTH METALS : Magnesium, Lithium, Beryllium, Sodium, Potassium, Calcium, Strontium, Barium, the Carbides of the Alkaline Earth Metals. PART II. — THE EARTH METALS: Aluminium, Cerium, Lanthanum, Didymium. PART III. — THE HEAVY METALS: Copper, Silver, Gold, Zinc and Cadmium, Mercury, Tin, Lead, Bismuth, Antimony, Chromium, Molybdenum, Tungsten, Uranium, Manganese, Iron, Nickel, and Cobalt, the Platinum Group. " COMPREHENSIVE and AUTHORITATIVE ... not only FULL of VALUABLE...
Seite 9 - We are of opinion, therefore, that the term as used in the acts of Congress is applicable to any zone or belt of mineralized rock lying within boundaries clearly separating it from the neighboring rock.
Seite 33 - NYSTROM'S POCKET-BOOK OF MECHANICS AND ENGINEERING. Revised and Corrected by W. DENNIS MARKS, Ph.B., CE (YALE SSS), Whitney Professor of Dynamical Engineering, University of Pennsylvania. Pocket Size. Leather, 155.
Seite 38 - was designed by Professor KANJUNE at an OOCTION to the above Series of Manuals. PROF. RANKINB'S WORKS— (Continued). VII. MISCELLANEOUS SCIENTIFIC PAPERS. Royal 8vo. Cloth, 31s. 6d. Part I. Papers relating to Temperature, Elasticity, and Expansion of Vapours, Liquids, and Solids. Part II. Papers on Energy and its Transformations. Part III. Papers on Wave-Forms, Propulsion of Vessels, &c.
Seite 16 - GENERAL CONTENTS. — The Materials of the Earth — A Mountain Hollow —Down the Valley — Along the Shore — Across the Plains — Dead Volcanoes —A Granite Highland— The Annals of the Earth— The Surrey Hills— The Folds of the Mountains. "The FASCINATING ' OpEN-AlK STUDIES' Of PnOF. OOLE give the subject a GLOW OF ANIMATION . . . cannot fail to arouse keen interest in geology."— Geological Magazine.
Seite 8 - All but the simplest explanations have, therefore, been avoided, and ANSWERS to the Exercises are given. Any person may readily, by careful study, become master of their contents, and thus lay the foundation for a further mathematical course, if desired. It...
Seite 17 - Management. PART II. — SEWAGE DISPOSAL WORKS IN OPERATION— THEIR CONSTRUCTION, MAINTENANCE, AND COST. Illustrated by Plates showing the General Plan and Arrangement adopted in each District.