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WORKS ON NATURAL HISTORY. 



INTRODUCTION TO THE MODERN CLASSI- 

 FICATION OF INSECTS ; comprising an Account of the Habits and 

 Transformations of the different Families; a Synopsis of all the British, and 

 a Notice of the more remarkable Foreign Genera. By J. O. WESTWOOD, 

 Sec. Ent. Soc. London, F.L.S. &c. Two vols., illustrated with above 130 

 Wood-cuts, comprising about Two Thousand Five Hundred distinct Figures. 

 Price 21. 8s. cloth lettered. 



A MANUAL OF BRITISH COLEOPTERA; or 



BEETLES; containing a Description of all the Species of Beetles hitherto 

 ascertained to inhabit Great Britain and Ireland, &c. With a complete Index 

 of the Genera. ByJ. F. STEPHENS, Esq. F.L.S. , Author of " illustrations of 

 British Entomology." One vol. post 8vo. 14s. cloth lettered. 



DR. TURTON'S MANUAL OF THE LAND AND 



FRESHWATER SHELLS OF THE BRITISH ISLANDS. A New 



Edition, revised and enlarged, by JOHN EDWARD GRAY, Esq. of the British 

 Museum. One vol. post 8vo. with Wood-cuts and Twelve coloured Plates, price 

 15s. cloth lettered. 



CONVERSATIONS ON MINERALOGY. Third 



Edition, enlarged, with 12 Plates, engraved by Mr. and Miss LOWRV. 

 2 vols. 12mo. 14s. cloth. 



REPORT ON THE GEOLOGY OF CORNWALL, 



DEVON, AND WEST SOMERSET, by Order of the Lords Commissioners 

 of Her Majesty's Treasury. By H. T. DE LA BECHE, F.R.S. &c. Director of 

 the Ordnance Geological Survey. 8vo. with Sections, &c. 14s. 



AN ETYMOLOGICAL AND EXPLANATORY 



DICTIONARY of the TERMS and LANGUAGE of GEOLOGY, with 

 especial regard to Association; containing also many Terms of Mineralogy 

 and Science. By GEORGE ROBERTS. Foolscap 8vo. 6s. cloth lettered. 



BOOK OF NATURE; a Popular Illustration of the 



General Laws and Phenomena of Creation. By JOHN MASON GOOD, M.D. 



F.R.S. 3d Edit. 3 vols. fcp. 8vo. 24s. 



"The best philosophical digest of the kind which we have seen." Monthly Review. 



TAXIDERMY ; or the Art of Collecting and Pre- 

 paring Objects of Natural History. 4th Edition, 12mo. Plates, 7s. 6d. 



ESSAYS ON NATURAL HISTORY. By CHARLES 



WATERTON, Esq. of Walton Hall, Author of " Wanderings in South Ame- 

 rica." Third Edition, with a View of Walton Hall, and an Autobiography 

 of the Author. One vol. fcp. 8vo. 8s. cloth lettered. 



CONVERSATIONS ON BOTANY. 8th Edition 



enlarged, 12mo. with 22 Engravings, 7s. 6d. plain ; 12s. coloured. 



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. 5lh Edition, considerably enlarged from the 4th Edition, and 

 with new Sections and Cuts, price One Guinea, cloth lettered. 



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