NEW WORKS AND NEW EDITIONS 



NATURAL PHILOSOPHY, &c.— continued. 



TREATISE ON the STEAM ENGINE; Historical, Practical, and DescripHve. 

 By John Farky, Entjineer. 4to. illustrated by numerous Woodcuts, and 

 25 Copprrjilates, engraved by Wilson Lowry, from Drawings by Messrs. Farey. 

 J '). 5s. bds.— Vol. II. is in the press. 



AN INTllODUCTION to GEOLOGY; intended to convey a Practical 



Knowledge of the Science, and comi)rising 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 Sections 



and Cuts, price One Guinea, cloth, lettered. 



" A work conspicuous for attractiveness, for perspicuity, for a style generally vigor- 

 ous and correct — often elegant and beautiful, and for an ' independence of spirit which 

 carries the author straight forward to his object without any servile regards to previous 

 systems. Mr. liakewell's work has long been our favourite elementary treatise on 

 Geology."— Athen\«um. 



REPORT ON THE GEOLOGY of CORNWALL, DEVON, and WEST 

 SOMERSET, by order of the Lords Commissioners of Her Majesty's Trea- 

 sury. By Henry T. De la Beche, F.R.S. &c. Director of the Ordnance 

 Geological Survey. I vol. 8vo. with numerous Sections and Plans. Price I4s. 

 cloth, lettered. 



NEW SYSTEM of GEOLOGY ; in which the great Revolutions of the Earth 

 and Animated Nature are reconciled to Modern Science and to Sacred His- 

 tory. By A. Ure, M.D. F.R.S. 8vo. with 7 Plates and 51 Woodcuts, 21s. 

 " We regard this New System of Geology as one of the most valuable accessions 



lately made to the scientific literature of our country."— Bran de's Quarterly Journ. 



CONVERSATIONS on MINERALOGY. With 12 Plates, engraved by Mr. 



and Miss Lowry. 3d Edition, enlarged, 2 vols. I2mo. Hs. cloth. 



" The plan of these Conversations is happily conceived, and it is executed with ability 

 and taste. The author has studiously avoided all unnecessary parade of technical 

 diction, has rendered the doctrines of crystallography more familiar than heretofore 

 to the tyro in mineralogy, and has included some of tlie most recently discovered sub- 

 stances. AVe may, therefore, unhesitatingly characterize this work as one of the most 

 desirable text books that have issued from the British press."— Monthly Review. 



CONVERSATIONS— ON LAND and WATER. By Mrs. Marcet. With 



a coloured Map, showing the Comparative Altitude of the principal Mountains 



of the World. In fcp. 8vo. price 5s. 6d. cloth, lettered. 



" Mrs. Marcet's ' Conversations' have long been regarded as the best popular intro- 

 ductions to the science of nature The natural way in which one part of the subject 



is made to lead to the other, giving the effect of a continuous discussion— the lucid and 

 graphic distinctness of the description— and the simplicity and aptness of the illustra- 

 tion employed— together with the familiar and playful style, and the pertinent anecdotes 

 introduced— combine to render the ' Conversations on Land and Water' a delightfully 

 entertaining as well as instructing book for the young; nay more, the information so 

 concisely and exquisitely conveyed may be edifying- to many readers of mature age. If 

 science were oftener taught in this homely and simple way, the pursuit of knowledge 

 would be infinitely more engaging to old and young." — Spectator. 



Bv the same Authoress, 

 CONVERSATIONS on VEGETABLE PHYSIOLOGY ; comprehending 

 the Elements of Botany, with their Application to Agriculture. 3d Edition, 

 revised, fcp. 8vo. with Plates, 9s. cloth lettered. 



CONVERSATIONS on NATURAL PHILOSOPHY. 8th Ediiion, with 



22 Engravings by Lowry, 10s. 6d. boards. 

 CONVERSATIONS on CHEMISTRY, in which the Elements of that Science 



are- familiarly explained and Ulustrated by Experiments ; with a Conversation 



on the Steam Engine. 2 vols. 12mo. 13th Edition, with Plates by Lowry, 



14s. boards. 



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