Volcanoes: What They are and what They TeachD. Appleton, 1881 - 381 Seiten |
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active volcanoes andesites appear atmosphere augite Auvergne basaltic basic lavas built canic carbonic acid cavities central centre character chemical composed composition condition containing cooling crater crater-rings crystalline crystals denuding forces deposited depth dykes earth's crust earth's surface enormous eruption Etna evidence exhibit exist extinct fact feet fluid formation formed fragments gabbro gases geological periods geologists glassy globe gradually granitic height igneous Illustrations incandescent iron Island lapilli lava-currents lava-streams line of fissure Lipari liquid masses materials ejected melaphyres metallic meteorites microliths miles minerals molten Monte Nuovo observation occur ocean origin parasitic cones portions present pressure produced pumice quantities rhyolites rock-masses scoria-cones scoriæ seen sides silica slope solid sometimes steam Stromboli structure substances sulphur summit take place thrown tion trachytic tuffs vapour vast Vesuvius violent volcanic action volcanic cones volcanic districts volcanic forces volcanic mountains volcanic outbursts volcanic phenomena volcanic rocks volcanic vents
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Seite 379 - SIGHT : An Exposition of the Principles of Monocular and Binocular Vision By JOSEPH LE CONTE, LL. D., author of " Elements of Geology"; "Beligion and Science " ; and Professor of Geology and Natural History in the University of California.
Seite 377 - Anecdotal History of the British Parliament. From the Earliest Periods to the Present Time, with Notices of Eminent Parliamentary Men and Examples of their Oratory. Compiled by GH JENNINGS. Crown 8vo. Cloth, $2.50. " As pleasant a companion for the leisure hours of a studious and thoughtful man as anything in book-shape since Selden. — London Telegraph. " It would be sheer affectation to deny the fascination exercised by the ' Anecdotal History of Parliament
Seite 376 - For sale by all booksellers ; or sent by mail, post-paid, on receipt of price. D. APPLETON & CO., Publishers, 1. 3. & 5 BOND STREET, NKW YORK.
Seite 378 - A TREATISE ON THE DISEASES OF THE NERVOUS SYSTEM. By WILLIAM A. HAMMOND, MD, Surgeon-General US Army (retired list) ; Professor of Diseases of the Mind and Nervous System in the University of the City of New York.
Seite 376 - ... psychical and physical conditions. ** This is not a technical work, but one of wide popular interest, in the principles and results of which every one is concerned. The illusions of perception of the senses and of dreams are first considered, and then the author passes to the illusions of introspection, errors of insight, illusions of memory, and illusions of belief.
Seite 380 - The work treats of the unity, origin, antiquity, and original localization of the human species, peopling of the globe, acclimatization, primitive man, formation of the human races, fossil human races, present human races, and the physical and psychological characters of mankind. STUDENTS' TEXT-BOOK OF COLOR ; or, MODERN CHROMATICS.
Seite 379 - Whoever will follow these pages, crayfish in hand, and will try to verify for himself the statements which they contain, will find himself brought face to face with all the great zoological questions which excite so lively an interest at the present day.
Seite 379 - ; and Professor of Geology and Natural History in the University of California. With numerous Illustrations. 12mo, cloth, $1.50. " It is pleasant to find an American book which can rank with the very best of foreign works on this subject. Professor Le Conte has long been known as an original investigator in this department ; all that he gives us is treated with a master-hand.