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[Pg i]THE CONTEMPORARY SCIENCE SERIES.
Edited by HAVELOCK ELLIS.
VOLCANOES:
PAST AND PRESENT.
| Fig. 1.—Eruption of Vesuvius, 1872-1873 (From a Photograph by Negretti and Zambra). |
VOLCANOES:
PAST AND PRESENT.
BY
EDWARD HULL, M.A., LL.D., F.R.S.
Examiner in Geology to the University of London.
WITH 41 ILLUSTRATIONS AND 4 PLATESOF ROCK-SECTIONS.
LONDON:
WALTER SCOTT, Limited,
24, WARWICK LANE, PATERNOSTER ROW.
1892.
By THE SAME AUTHOR.
The Coal-fields of Great Britain: theirHistory, Structure, and Resources. 4th edit. (1881.) E.Stanford.
The Physical History of the British Isles.With a Dissertation on the Origin of Western Europe and ofthe Atlantic Ocean. (1882.) E. Stanford.
The Physical Geology and Geography ofIreland. 2nd edit. (1891.) E. Stanford.
Treatise on the Building and OrnamentalStones of Great Britain and Foreign Countries. (1872.)Macmillan and Co.
Memoir on the Physical Geology andGeography of Arabia-Petræa, Palestine, and adjoining Districts.(1886.) Committee of the Palestine Exploration Fund.
Mount Seir, Sinai, and Western Palestine.Being a Narrative of a Scientific Expedition, 1883-84. (1885.)Committee of the Palestine Exploration Fund.
Text-book of Physiography. (1888.) C. W.Deacon and Co.
Sketch of Geological History. (1887.) C. W.Deacon and Co.
PREFACE.
It has not been my object to present in the followingpages even an approximately complete descriptionof the volcanic and seismic phenomena of the globe;such an undertaking would involve an amount oflabour which few would be bold enough to attempt;nor would it be compatible with the aims of theContemporary Science Series.
I have rather chosen to illustrate the most recentconclusions regarding the phenomena and origin ofvolcanic action, by the selection of examples drawnfrom the districts where these phenomena have beenmost carefully observed and recorded under the lightof modern geological science. I have also endeavouredto show, by illustrations carried back into later geologicalepochs, how the volcanic phenomena of thepresent day do not differ in kind, though they mayin degree, from those of the past history of our globe.For not only do the modes of eruption of volcanicmaterials in past geological times resemble those ofthe present or human epoch, but the materials themselves[Pg viii]are so similar in character that it is only inconsequence of alterations in structure or compositionwhich