32 WestwooiCs Introduction to 



(c) Sense of smell. (<■/) Sense of taste, (c) Sense of touch, b. The di- 

 gestive system, c. The circulating system, d. The respiratory system, e. 

 The muscular system, f. The generative system, p. 294. to 318. 



Sect. iv. Physiology and instinct of insects. Instinct. Instinct for per- 

 petuation of species. Instinct for self-p i- e ser vation. Modes of defence and 

 attack, p. 318. to 324. 



" Sect. v. Classification of Insects. Linnaean arrangement. Other ar- 

 rangements. Latreille's last arrangement, p. 319. to 332. 



"Chap. vi. Illustrations of the Order of Ptilota. Order I. Coleoptera. Cha- 

 racters. Habits, &c. Latreille's arrangement. Orders n. to xn. treated of. 

 p. 335. to 421. 



" Alphabetical list of the chief entomological writers. Anatomical index. 

 p. 423. to 431. 



List of figures of insects given in this work (including the dissections), ar- 

 ranged according to the preceding classification. (The number figured 

 exceed 120.) 



Strongly impressed with the importance of the study of in- 

 sects to gardeners, and well knowing that the great majority of 

 them know so very little of the subject, as not even to have an 

 idea of how it is treated of in books, we have no doubt of the 

 usefulness of giving the contents of Mr. Westwood's work so 

 much in detail. By glancing over these contents, the reader 

 will see the great extent of the subject, and form some idea of 

 the interesting topics brought forward in the course of its dis- 

 cussion ; and the result we would wish to be, a strong desire on 

 his part to peruse the work. 



Art. III. An Introduction to the modern Classification of Insects ; 

 founded on the Natural Habits and corresponding; Organisation of 

 the different Families. By J. O. Westwood, F.L.S., &c. 8vo. 

 Vol. I. pp.462., plates and numerous woodcuts. To be completed 

 in Two Volumes. London, 1839. 



In order that our readers may be able to ascertain the differ- 

 ence between this work and the Entomologist's Texd-BooJc, by 

 the same author, it will be requisite that we quote at some 

 length from the preface. 



" The majority of entomological works which have appeared during the last 

 quarter of a century, and which have not only given so great an impulse to the 

 science, but have also imparted to it a philosophical character, of which it was 

 previously destitute, may be described as exhibiting either generalised views 

 of the subject, or of elaborate technical details of the genera and species of 

 insects. 



" Thus, whilst the delightful Introduction to Entomology of Messrs. Kirby 

 and Spence, followed by Burmeister's Manual, and, at more humble dis- 

 tances, by the Insect Architecture, Transformations, and Miscellanies, the Gram- 

 mar of Entomology by Newman, and my Entomologists Text-Book, have made 

 us acquainted with the general details of insect habits and structure ; the 

 Illustrations and Descriptions of the Genera of British Insects of Curtis, the 

 Illustrations of British Entomology of Stephens, the Essay on the Fossorial 

 Hymenoplera of Shuckard, the Lepidoptera Britannica of Haworth, &c, have 

 led us to the investigation of the minute details of generic and specific 



