3550 Notices of New Books : 



Vol. I. 

 " Preface. — Mr. Spence. 



[The two paragraphs relative to the religious bearing of the 

 work (p. xiii. and xiv.); the first half of one at p. xvi., beginning 

 ' The authors, &c.,' and one at p. xviii., beginning * Besides 

 these, &c.,' were added by Mr. Kirby.] 

 " Letters. 



I. — Introductory. Mr. Kirby. 

 II. — Objections answered. 



The first part, to p. 39. Mr. Kirby. 



The second part, in defence of Systematic Entomology, p. 40 



— 53. Mr. Spence. 

 The concluding part as to cruelty. Mr. Kirby and Mr. 

 Spence. 

 III. — Metamorphoses. Mr. Spence. 

 [From p. 72 to 77 by Mr. Kirby.] 

 IV. to VIII. — Injuries caused by insects. Mr. Kirby. 

 IX. and X. — Benefits derived from insects. Mr. Kirby. 



[A large proportion of the facts, and several entire paragraphs 

 and pages in these seven letters, were furnished by Mr. 

 Spence.] 

 XI. — Affection of insects for their young. Mr. Spence. 

 XII. and XIII. — Food of insects. Mr. Spence. 

 XIV. and XV. — Habitations of insects. Mr. Spence. 



Vol. II. 

 " Letters. 



XVI. to XX. — Societies of insects. Mr. Kirby. 



XXI. — Means by which insects defend themselves. Mr. Kirby. 



XXII. and XXIII. — Motions of Insects. Mr. Kirby. 



XXIV. — Noises produced by insects. Mr. Kirby. 



XXV. — Luminous insects. Mr. Spence. 



XXVI. — Hybernation and torpidity of insects. Mr. Spence. 



XXVII. — Instinct of insects. Mr. Spence. 



Vol. III. 

 " Letters. 



XXVIII. — Definition of the term insect. Mr. Kirby and Mr. 

 Spence. 



XXIX. to XXXII.— States of insects. Mr. Kirby and Mr. 

 Spence. 



