LATELY PUBLISHED BY LONGMAN AND CO. 
3 
NATURAL HISTORY — CONTINUED. 
ESSAYS on NATURAL HISTORY. 
By Charles Waterton, Esq. of Walton Hall ; 
Author of " Wanderings in South America." 
2d Edition, 1 vol. fcp. 8vo. 8s. cloth lettered. 
"A delightful little volume Mr. Waterton is evidently one who loves the pursuit of 
natural history for its own sake; he is one who rejoices in the happiness of Gocfs creatures, 
and marks with delight the development of their instincts.'^ — Quarterly Review. 
GEOLOGY, CONCHOLOGY, ^' MINERALOGY. 
REPORT on the 
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. Svo. 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 B.^kewell. 
5th Edition, considerably enlarged from the 4th Edition, and with new Section and Cuts, 
price One Guinea, in cloth lettered. 
NEW SYSTEM of GEOLOGY ; 
Ii? which the great Revolutions of the Earth and Animated Nature are reconciled to 
Modern Science and to Sacred History. 
By A. Ure, M.D. F.R.S. 
Svp. with 7 Plates and 51 Woodcuts, 21s. 
CONVERSATIONS on MINERALOGY. 
With 12 Plates, engraved by Mr. and Miss Lowry. 
3d Editioi^, enlarged, 2 vols. 12mo. price 14s. in cloth. 
Mr. John Edward Gray, of the British Museum, is preparing a New Edition, 
thoroughly revised, and with considerable Additions, of Turton's 
MANUAL of the LAND and FRESH-WATER SHELLS 
Of the BRITISH ISLANDS. 
Also, by Mr. J. E. Gray, 
OUTLINES of CONCHOLOGY ; 
Or, a short Account of the Orders, Families, and Genera of Molluscous Animals and 
their Shells. Illustrated with 12 Plates. 
INTRODUCTION to LAMARCK'S CONCHOLOGY. 
By E. A. Crouch, F.L.S. 
4to. 22 Plates, 31s. 6d. plain ; ^3. 3s. coloured. 
