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NATURAL HISTORY CONTINUED. 



ESSAYS on NATURAL HISTORY. 



By CHARLES WATER-TON, Esq. of Walton Hall; 

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GEOLOGY, CONCHOLOGY, $f MINERALOGY. 



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GEOLOGY of CORNWALL, DEVON, and 



WEST SOMERSET, 



By Order of the Lords Commissioners of Her Majesty's Treasury. 



By HENRY T. DE LA BECHE, F.R.S. &c. Director of the Ordnance Geological Survey. 



1 vol. 8vo. with numerous Sections and Plans. Shortly. 



AN INTRODUCTION to GEOLOGY; 



Intended to convey a Practical Knowledge of the Science ; and comprising the most 



important recent Discoveries ; with Explanations of the Facts and Phenomena 



which serve to confirm or invalidate various Geological Theories. 



By ROBERT BAKEWELL. 



5th Edition, considerably enlarged from the 4th Edition, and with new Section and Cuts, 

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NEW SYSTEM of GEOLOGY ; 



In which the great Revolutions of the Earth and Animated Nature are reconciled to 

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By A. URE, M.D. F.R.S. 

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CONVERSATIONS on LAND and WATER. 



With a coloured Map, showing the Compa 



principal Mountains of the World. 

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By Mrs. MARCET. With a coloured Map, showing the Comparative Altitude of the 

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CONVERSATIONS on MINERALOGY. 



With 12 Plates, engraved by Mr. and Miss LOWRY. 

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MR. JOHN EDWARD GRAY, of the British Museum, is preparing a New Edition, 

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MANUAL of the LAND and FRESH-WATER SHELLS 



Of the BRITISH ISLANDS. 

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OUTLINES of CONCHOLOGY; 



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INTRODUCTION to LAMARCK'S CONCHOLOGY. 



By E. A. CROUCH, F.L.S. 

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