STUDENTS ELEMENTS OF GEOLOGY. 



By Sir Charles Lyell. 



Revised by Professor J. W. Judd, C.B.,F.R.S. 

 New and Kevised Edition. With 600 Illustrations. Crown 8vo. 7s. 6d. net. 

 " IVie Siudeni'' s Lyell,'''' edited by Professor J. W. Judd, is based on the 

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 of this book is to illustrate the principles and methods of modern geological 

 science, as first clearly formulated in Lyell's writings. The new and revised 

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 is prefaced by a historical introduction, describing the events which originally leii 

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With Special Reference to the Igneous Rocks. 

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1888. Roy. 8vo. 458 pp. of text, with 47 plates, some coloured, bound in 

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CLIMATIC CHANGES SINCE 

 THE LAST ICE AGE. 



A Collection of Papers read before the Committee of the 

 Eleventh International Geological Congress at Stockholm, 1910. 



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IRON ORE RESOURCES OF THE 

 WORLD. 



A Summary compiled upon the initiative of the Executive Committee 



of the Eleventh International Geological Congress, Stockholm, 1910, 



with the assistance of Geological Surveys and Mining Geologists of 



different Countries. 



Edited by the General Secretary oe the Congress. 



2 vols. ^to. With 28 plates and 137 ill tis I rat ions in the text, and 

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