Aids in Practical Geology |
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Common terms and phrases
acid altered amphibole andesites angles aperture appear aragonite areas assay augite axis basal bead become blowpipe blue brown calcareous calcite carbonate Carboniferous character charcoal cleavage cobalt nitrate colour colourless common commonly constituents convex Cretaceous crossed nicols crystalline crystals decomposed Devonian encrustation eurites fairly felspar flame fossils fragments fused Geol glass Gotlandian grains granite granular granules green groundmass H Cl Handsome Cloth head-shield heated hinge-line hornblende igneous rocks iron Jurassic lavas leucite limestones lobes magnetite margin marked mass mica microscope minerals minute mouth observed occur olivine opaque ophitic optic ordinary Ordovician orthoclase outer oxide parallel plagioclase planes plates pleochroism porphyritic posterior powder prisms pygidium pyroxene quartz radial reaction Refr refractive rhombic rhyolites rotation sections seen septa shell side silica soda sodium sometimes specific gravity specimens spherulites structure sulphur surface Suture-lines trace trachytic tube types typical umbo valve ventral vibration-trace whorl
Popular passages
Page 31 - ... in exact SURVEY-WORK will best know how to appreciate the enormous amount of labour represented by this valuable book. The computations enable the user to ascertain the sines and cosines for a distance of twelve miles to within half an inch, and this BY REFERENCE TO BUT ONE TABLE, in place of the usual Fifteen minute computations required.
Page 31 - TRAVERSE TABLES: Computed to Four Places of Decimals for every Minute of Angle up to 100 of Distance. For the Use of Surveyors and Engineers. BY RICHARD LLOYD GURDEN, Authorised Surveyor for the Governments of New South Wales and Victoria, *»* Published with the Concurrence oj the Surveyors- General for New South Wales and Victoria. "Those who have experience in exact SURVEY-WORK will best know how to appreciate the enormous amount of labour represented by this valuable book.
Page 35 - A MANUAL OF APPLIED MECHANICS : Comprising the Principles of Statics and Cinematics, and Theory of Structures, Mechanism, and Machines. With Numerous Diagrams. Crown 8vo, Cloth. SEVENTEENTH EDITION. 12s. 6d. A MANUAL OF CIVIL ENGINEERING : Comprising Engineering Surveys, Earthwork, Foundations, Masonry, Carpentry, Metal Work, Roads, Railways, Canals, Rivers, Waterworks, Harbours, &c.
Page 60 - ELEMENTS OF METALLURGY. A PRACTICAL TREATISE ON THE ART OF EXTRACTING METALS FROM THEIR ORES. BY J. ARTHUR PHILLIPS, M.lNST.OE, FCS, FGS, &o.
Page 79 - Volumes, each complete in itself. PHYSICO-CHEMICAL TABLES FOR THE USE OF ANALYSTS, PHYSICISTS, CHEMICAL MANUFACTURERS AND SCIENTIFIC CHEMISTS. Volume I.— Chemical Engineering, Physical Chemistry.
Page 71 - SECOND EDITION, Thoroughly Revised. Illustrated. 16s. THE CHEMISTRY OF MANUFACTURING PROCESSES. General Contents. — Sulphuric Acid Manufacture— Alkali, &c. —Destructive Distillation Artificial Manure— Petroleum— Lime and Cement— Clay and Glass — Sugar and Starch — Brewing and Distilling — Oils, Resins, and Varnishes— Soap and Candles — Textiles and Bleaching — Colouring Matters, Dyeing, and Printing — Paper and Pasteboard — Pigments and Paints — Leather, Glue, and Size...
Page 43 - Price 6s. A MEDICAL AND SURGICAL HELP FOR SHIPMASTERS AND OFFICERS IN THE MERCHANT NAVY. BY WM. JOHNSON SMITH, FROS, Principal Medical Officer, Seamen's Hospital, Greenwich. ".* The attention of all interested in our Merchant Navy is requested to this exceedingly useful and valuable work.
Page 32 - Tool Grinding. — Emery Wheels. — Mounting Emery Wheels. — Emery Rings and Cylinders. — Conditions to Ensure Efficient Working. — Leading Types of Machines. — Concave and Convex Grinding. — Cup and Cone Machines. — Multiple Grinding. — "Guest" Universal and Cutter Grinding Machines. — Ward Universal Cutter Grinder. — Press. — Tool Grinding. — Lathe Centre Grinder.— Polishing. — INDEX. " Eminently practical . . . cannot fail to attract the notice of the users of this class...
Page 73 - DAIRY CHEMISTRY FOR DAIRY MANAGERS, CHEMISTS, AND ANALYSTS A Practical Handbook for Dairy Chemists and others having Control of Dairies. BY H. DROOP RICHMOND, FIC, CHEMIST TO THE AYLESBURY DAIRY COMPANY.
Page 52 - RESEARCHES ON THE PAST AND PRESENT HISTORY OF THE EARTH'S ATMOSPHERE. Including the latest Discoveries and their Practical Applications. BY DR. THOMAS LAMB PHIPSON. PART I. — THE EARTH'S ATMOSPHERE IN REMOTE GEOLOGICAL PERIODS. PART II. — THE ATMOSPHERE OF OUR PRESENT PERIOD. APPENDICES ; INDEX.