Open-air Studies: An Introduction to Geology Out-of-doorsC. Griffin, limited, 1895 - 322 Seiten |
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Seite 7
... gives a bright reflection , while the other half looks dull ; clearly the planes of fracture are differently sloped in the two parts of the mineral , and it has not a perfectly simple internal structure . A good knife will just scratch ...
... gives a bright reflection , while the other half looks dull ; clearly the planes of fracture are differently sloped in the two parts of the mineral , and it has not a perfectly simple internal structure . A good knife will just scratch ...
Seite 8
... gives such a shining appearance to many specimens of the rock . Some micas are pale and silvery ; others are quite dark , being bronze - coloured or black ; but they have many characters in common . Again and again their proper form can ...
... gives such a shining appearance to many specimens of the rock . Some micas are pale and silvery ; others are quite dark , being bronze - coloured or black ; but they have many characters in common . Again and again their proper form can ...
Seite 13
... give some slight idea as to why we say a mineral crystallises in such - and - such a system . The same chemical substance sometimes crystallises in two , or rarely in three , systems . In such cases we have two or even three mineral ...
... give some slight idea as to why we say a mineral crystallises in such - and - such a system . The same chemical substance sometimes crystallises in two , or rarely in three , systems . In such cases we have two or even three mineral ...
Seite 15
... give us the clue without a complete quantitative analysis . Unfor- tunately , the silicates are among the most abundant sub- stances in the earth's crust , and the minerals formed from them are by far the most difficult to analyse . The ...
... give us the clue without a complete quantitative analysis . Unfor- tunately , the silicates are among the most abundant sub- stances in the earth's crust , and the minerals formed from them are by far the most difficult to analyse . The ...
Seite 18
... give off bubbles of gas in acid unless the liquid is heated . Chaly bite . - Iron carbonate . Faintly brown ; lustre almost glassy . Generally resembles calcite , even in cleavage , but specific gravity nearly 4. Hexagonal system ...
... give off bubbles of gas in acid unless the liquid is heated . Chaly bite . - Iron carbonate . Faintly brown ; lustre almost glassy . Generally resembles calcite , even in cleavage , but specific gravity nearly 4. Hexagonal system ...
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Open-Air Studies: An Introduction to Geology Out-Of-Doors Grenville Arthur James Cole Keine Leseprobe verfügbar - 2015 |
Open-Air Studies: An Introduction to Geology Out-Of-Doors Grenville Arthur James Cole Keine Leseprobe verfügbar - 2015 |
Häufige Begriffe und Wortgruppen
alluvial alluvium Alps andesite augite banks basalt become beds beneath blocks calcium carbonate Chalk character CHARLES GRIFFIN chemical clay cliffs coast colour cone crags Cretaceous crust crystalline crystals denudation deposits dykes earth edge EDITION Engineer Eocene escarpment EXETER STREET feet felspars flint flow folded fossils Geol Geology glacier glass gneiss grains granite GRIFFIN & CO.'S Handsome Cloth hills hollow igneous Illustrations iron Juras Jurassic lake Lake Bonneville lava lava-flows layers Leith Hill limestone LONDON lower marine mass material Mesozoic mica miles minerals Miocene mountain occur orthoclase oxide pebbles plain planes Plate plateau Pliocene PRACTICAL pyroxene quartz rhyolite ridge rise river roches moutonnées rock round salts sand sandstone schists seen shells side silica slope species specific gravity steep stones STRAND strata stream structure summit surface TEXT-BOOK unconformity upper valley volcanic Wealden whole
Beliebte Passagen
Seite 21 - 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.
Seite 51 - 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 31 - 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 48 - SMITH'S CONVERSION-TABLES form the most unique and comprehensive collection ever placed before the profession. By their use much time and labour will be saved, and the chances of error in calculation diminished.
Seite 41 - 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 79 - Of lightning through the tempest ; — thou dost lie, — Thy giant brood of pines around thee clinging, Children of elder time, in whose devotion The chainless winds still come and ever came To drink their odours, and their mighty swinging To hear, an old and solemn harmony ; Thine earthly rainbows stretched across...
Seite 44 - SHELTON-BEY (W. Vincent, Foreman to the Imperial Ottoman Gun Factories, Constantinople) : THE MECHANIC'S GUIDE : A Hand-Book for Engineers and Artizans. With Copious Tables and Valuable Recipes for Practical Use. Illustrated. Second Edition. Crown 8vo. Cloth, 7/6.
Seite 6 - 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 19 - Those who have experience in exact SURVEY-WORK will best know how to appreciate the enormous amount of labour represented by this valuable book.
Seite 45 - A MANUAL OF MARINE ENGINEERING: COMPRISING THE DESIGNING, CONSTRUCTION, AND WORKING OF MARINE MACHINERY.