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RESEARCHES ON THE PAST AND PRESENT HISTORY OF 



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Including the latest Discoveries and their Practical Applications. 

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PART I. THE EARTH'S ATMOSPHERE IN REMOTE GEOLOGICAL PERIODS. PART II. 

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THIRD EDITION, Revised, Enlarged, and Re-issued. 

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AIDS IN PRACTICAL GEOLOGY: 



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STRATIGRAPHICAL GEOLOGY AND 

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LONDON: CHARLES GRIFFIN & CO., LTD., EXETER STREET, STRAND. 



