Volcanoes: What They are and what They TeachC. K. Paul, 1881 - 381 Seiten |
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Seite v
... observation and acute reasoning upon the questions which the author made the study of his life . In the first of these works the phenomena of volcanic activity are described , and its causes discussed ; in the second it is shown that ...
... observation and acute reasoning upon the questions which the author made the study of his life . In the first of these works the phenomena of volcanic activity are described , and its causes discussed ; in the second it is shown that ...
Seite viii
... observation and experiment , which constitutes the principal object , of the work . The woodcuts which illustrate the volume are in some cases prepared from photographs , and I am in- debted to Mr. Cooper for the skill with which he has ...
... observation and experiment , which constitutes the principal object , of the work . The woodcuts which illustrate the volume are in some cases prepared from photographs , and I am in- debted to Mr. Cooper for the skill with which he has ...
Seite 3
... observations which alone can form the basis of scientific reasoning . The ancients were acquainted only with the four or five active volcanoes in the Mediterranean area ; the term ' volcano ' being the name of one of these ( Vul- cano ...
... observations which alone can form the basis of scientific reasoning . The ancients were acquainted only with the four or five active volcanoes in the Mediterranean area ; the term ' volcano ' being the name of one of these ( Vul- cano ...
Seite 4
... observations which he had made upon them . About the same time the French geologist Dolomieu showed how much light might be thrown on the nature of volcanic action by a study of the various materials which are ejected from volcanic ...
... observations which he had made upon them . About the same time the French geologist Dolomieu showed how much light might be thrown on the nature of volcanic action by a study of the various materials which are ejected from volcanic ...
Seite 5
... observations of travellers over wider areas have greatly multiplied the facts upon which we may reason and speculate , and many erroneous hypotheses which had grown up in connec- tion with the subject have been removed by patient and ...
... observations of travellers over wider areas have greatly multiplied the facts upon which we may reason and speculate , and many erroneous hypotheses which had grown up in connec- tion with the subject have been removed by patient and ...
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Häufige Begriffe und Wortgruppen
active volcanoes andesites appear atmosphere augite Auvergne basaltic basic lavas canic carbonic acid cavities centre character Cheaper Edition chemical Cloth composed composition condition crater crater-rings crystalline crystals Demy 8vo denuding forces depth dykes earth's crust earth's surface enormous eruption Etna exhibit exist fact Fcap feet formation formed fragments Frontispiece gases geological periods geologists glassy globe granitic igneous Illustrations incandescent interior Island lapilli Large post 8vo lava-currents lava-streams line of fissure Lipari liquid mass melaphyres metallic meteorites microliths miles minerals Monte Nuovo ocean origin parasitic cones Poems portions present pressure price 35 produced pumice quantities rhyolites rock-masses scoria-cones scoriæ Second Edition seen sides silica slope Small crown 8vo solid steam Stromboli structure substances subterranean summit take place temperature Third Edition tion trachytic tuffs vapour vast Vesuvius volcanic action volcanic cones volcanic districts volcanic forces volcanic mountains volcanic outbursts volcanic phenomena volcanic vents vols
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