Books published by Longman, Rees, Ormc, Brown, and Green. 



AN INTRODUCTION to ENTOMOLOGY ; or, Elements of 

 the Natural History of Insects. By William Kirby, M.A. F.R.S. & L.S.; 

 and William Spence, Esq. F.L.S. A New Edition in Four Vols; 8vo. 

 Illustrated by coloured Plates, and Portraits of the Authors. 



This Work is intended as a general and popular History of Insects, and 

 contains an account of the injuries they occasion, (including an account of 

 those Insects which cause diseases in the human frame, and of those which 

 are noxious to the farmer and agriculturist,) the benefits derived from them, 

 the metamorphoses they undergo, their affection for their young, their va- 

 rious kinds of food, and the means by which they procure it, a description 

 of their habitations, &c. 



CONVERSATIONS on CHEMISTRY ; in which the Elements 

 of that Science are familiarly explained and illustrated by Experiments. 

 The 11th Edition, revised and improved, in 2 Vols. 12mo. with Plates by 

 Lowry, 14s. boards. In this Edition a Conversation has been added on the 

 Steam Engine. 



By the same Author, 



CONVERSATIONS on NATURAL PHILOSOPHY. Fourth Edition, 

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



CONVERSATIONS on POLITICAL ECONOMY. Fifth Edition, 

 12mo. 9s. boards. 



A GEOGNOSTICAL ESSAY on the SUPERPOSITION of 

 ROCKS in BOTH HEMISPHERS. By M. de Humboldt, and trans- 

 lated into English under his immediate inspection. In 1 Vol. 8vo. Price 

 14s. boards. 



THE GARDENERS REMEMBRANCER; exhibiting the 

 Nature of Vegetable Life, and the Effects of Vegetation ; and containing 

 practical Methods of Gardening, both in the natural way, and in the artifi- 

 cial forcing scheme ; adapted either to small or large Gardens, and to every 

 climate and soil. To which is now added, the Culture of the Cucumber; 

 the Plan of a lately invented Brick Frame for forcing Fruits, Flowers, and 

 esculent Vegetables, without the influence of Fire-heat ; and on the Ma- 

 nagement of Timber-trees. By James Macphail, upwards of twenty years 

 Gardener and Steward to the late Earl of Liverpool. In 12mo. price 7s. 6d. 

 boards, the 2nd Edition, corrected and improved. 



TAXIDERMY, or a complete TREATISE on the Art of Pre- 

 paring, Mounting, and Preserving every Object of Natural History for Mu- 

 seums'; to which is added, for the convenience of Travellers, a succinct 

 Series of more simple Instructions for collecting, transporting, and observ- 

 ing the various objects of the three Kingdoms, with Lists indicating those 

 which are rarest or most wanting in European Collections. The 2nd Edi» 

 tion, in 1 Vol. 12mo. with Plates, 7s. 6d. boards. 



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