Gold Seeking in South Africa: A Handbook of Hints for Intending Explorers, Prospectors, and Settlers : with a Chapter on the Agricultural Prospects of South AfricaC. Griffin, 1902 - 134 Seiten |
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Seite 4
... consisting mostly of various gravelly soils and rocks , often showing many alluvial deposits . In some of these deposits , which have been brought in the course of time by floods from great distances , valuable metals have been found ...
... consisting mostly of various gravelly soils and rocks , often showing many alluvial deposits . In some of these deposits , which have been brought in the course of time by floods from great distances , valuable metals have been found ...
Seite 6
... consist of coarse whitish sandstone , blackish slate , and reddish sandstone , all of a soft nature . The localities where this formation is found are very extensive . In many places thick coal - seams are found , and workings are in ...
... consist of coarse whitish sandstone , blackish slate , and reddish sandstone , all of a soft nature . The localities where this formation is found are very extensive . In many places thick coal - seams are found , and workings are in ...
Seite 8
... in the rocks . The rock immediately below the alluvial wash is called " bed rock , " and may consist of any of the rocks already mentioned . The richest yield of gold is obtained just above the 8 GOLD SEEKING IN SOUTH APRICA .
... in the rocks . The rock immediately below the alluvial wash is called " bed rock , " and may consist of any of the rocks already mentioned . The richest yield of gold is obtained just above the 8 GOLD SEEKING IN SOUTH APRICA .
Seite 12
... consisting simply of three planks of wood , formed trough - like , through which runs a constant flow of water to wash away the sand , clay , or sediment ( Fig . 4 ) . Fig . 4. Trough - like sluice box . The soil is shovelled into the ...
... consisting simply of three planks of wood , formed trough - like , through which runs a constant flow of water to wash away the sand , clay , or sediment ( Fig . 4 ) . Fig . 4. Trough - like sluice box . The soil is shovelled into the ...
Seite 17
... consist of quartz or conglomerate , and what colour ; if it contains large or small pebbles , and how these are bound together . ( d ) The reef - matter should be sampled equally and frequently , while working . درسید Fig . 12 ...
... consist of quartz or conglomerate , and what colour ; if it contains large or small pebbles , and how these are bound together . ( d ) The reef - matter should be sampled equally and frequently , while working . درسید Fig . 12 ...
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Gold Seeking in South Africa: A Handbook of Hints for Intending Explorers ... Theo Kassner Keine Leseprobe verfügbar - 2016 |
Gold Seeking in South Africa: A Handbook of Hints for Intending Explorers ... Theo Kassner Keine Leseprobe verfügbar - 2017 |
Gold Seeking in South Africa: A Handbook of Hints for Intending Explorers ... Theo Kassner Keine Leseprobe verfügbar - 2017 |
Häufige Begriffe und Wortgruppen
African alluvial deposits amalgam April August auriferous Barberton basin CHAPTER CHARLES GRIFFIN chlorite chlorite schist chutes clay conglomerate reefs contains Creek Crown 8vo December decomposed Devil's Kantoor diorite diorite dykes district dwts dwts grs east EDITION Engineer EXETER STREET exposed farm February foot-wall gold-bearing Goldfield granite hanging-wall Hill igneous rock Illustrations inches Jamestown January Johannesburg July June Kaap river Kaap Valley Klein Letaba Klerksdorp kloofs Komati Krugersdorp layers limestone lodes Lydenburg main belt Main Reef leader Main Reef series miles mining Moodies mountains Murchison Range November nuggets numerous occur October ounces outcrops outputs overlying oxidised ozs dwts pebbles Pilgrim's Rest places Plate pockets Potchefstroom PROF prospecting prospectors pyrites quartz quartz reef quartzite quicksilver reef matter rich running sandstone schist sea level seam September shafts shale Sheba slate soil South Africa South Reef strata strike surface SWAZILAND SYND table-lands thin timber Transvaal veins Witwatersrand
Beliebte Passagen
Seite 48 - FGS, Borough Engineer and Surveyor, Fulham ; late Borough Engineer, Bacup, Lanes. GENERAL CONTENTS. Introduction. — Hydraulics. — Velocity of Water in Pipes. — Earth Pressures and Retaining Walls. — Powers. — House Drainage.- Land Drainage. — Sewers. — Separate System. — Sewage Pumping.— Sewer Ventilation. — Drainage Areas.— Sewers, Manholes, &c.— Trade Refuse.— Sewage Disposal Works.
Seite 25 - ENGINE-ROOM PRACTICE : A Handbook for Engineers and Officers in the Royal Navy and Mercantile Marine, including the Management of the Main and Auxiliary Engines on Board Ship. BY JOHN G. LIVERSIDGE...
Seite 44 - Review of the Cement Industry — The Early Days of Portland Cement — Composition of Portland Cement — PROCESSES OF MANUFACTURE — The Washmill and the Backs — Flue and Chamber Drying Processes — Calcination of the Cement Mixture — Grinding of the Cement — Composition of Mortar and Concrete — CEMENT TESTING — CHEMICAL ANALYSIS of Portland Cement, Lime, and Raw Materials — Employment of Slags for Cement Making — • Scott's Cement, Selenitic Cement, and Cements produced from Sewage...
Seite 36 - Societies — Loading of Ships — Shipping Legislation, 1884 to 1894 — Statistics of Shipping. THE PERSONNEL : Shipowners— Officers— Mariners — Duties and Present Position. EDUCATION : A Seaman's Education : what it should be — Present Means of Education — Hints. DISCIPLINE AND DUTY — Postscript — The Serious Decrease in the Number of British Seamen, a Matter demanding the Attention of the Nation.
Seite 28 - BY THE SAME AUTHOR. KITCHEN BOILER EXPLOSIONS: Why they Occur, and How to Prevent their Occurrence. A Practical Handbook based on Actual Experiment. With Diagram and Coloured Plate. Price 33.
Seite 40 - 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.— &c.
Seite 46 - THE MEAN DENSITY OF THE EARTH : An Essay to which the Adams Prize was adjudged in 1893 in the University of Cambridge. By JH POYNTING, Sc.D., FRS, Late Fellow of Trinity College, Cambridge; Professor of Physics, Birmingham University. In Large 8vo, with Bibliography, Illustrations in the Text, and Seven Lithographed Plates. 12s. 6d. " Cannot fail to be of GREAT and GENERAL INTEREST."— Athenteum.
Seite 39 - General Contents. — The Qualification for the Position of Shipmaster — The Contract with the Shipowner — The Master's Duty in respect of the Crew : Engagement ; Apprentices ; Discipline ; Provisions, Accommodation, and Medical Comforts ; Payment of Wages and Discharge — The Master's Duty in respect of the Passengers — The Master's Financial Responsibilities— The Master's Duty in respect of the Cargo— The Master...
Seite 20 - In Quarto, Handsome Cloth. With Numerous Plates. 255. THE HEAT EFFICIENCY OF STEAM BOILERS (LAND, MARINE, AND LOCOMOTIVE). With many Tests and Experiments on different Types of Boilers, as to the Heating Value of Fuels, &c., with Analyses of Gases and Amount of Evaporation, and Suggestions for the Testing of Boilers.
Seite 35 - Quite the BEST PUBLICATION on this subject."— Shipping Gazette. Latitude and Longitude : How to find them. By WJ MILLAR, CE SECOND EDITION, Revised. 2s. " Cannot but prove an acquisition to those studying Navigation."— Marine Engineer, Practical Mechanics : Applied to the requirements of the Sailor.