XXll PREFACE. 



cessible; and to ascertain, by the public recep- 

 tion of this first part, whether it will be expedient 

 to give the remainder that extension which was at 

 one time contemplated, or to contract it within 

 narrower limits. A history of Entomology, and a 

 complete list of entomological works, (for which 

 last Mr. Dryander's admirable catalogue of Sir 

 Joseph Banks's library affords the fullest mate- 

 rials, ) entered into the original plan, and the 

 rough draught of both is completed; but whether 

 these (which are not essential to a work of this 

 nature) will be published, must depend upon the 

 judgement of the public as to the value of that 

 portion now submitted to them. 



The contents of the two remaining volumes 

 will be nearly as follows. Societies of insects, in- 

 cluding the History of Ants, Wasps, Bees, &c. 

 Motions of insects. Noises of insects. Means of 

 defence from their enemies. Luminous insects. 

 Hybernation of insects. Instinct of insects. Dis- 

 eases of insects. Definition of the term Insect. States 

 of insects — Egg; Larva; Pupa; Imago. Their 

 general e^r/morAnatomy — Head ; Trunk ; Abdo- 

 men. Their interior Anatomy and Physiology — 

 Sensation; Respiration; Circulation; Digestion; 

 Secretion; Generation, &c. Senses of insects. Oris- 

 mology and Definitions of terms. Characters of 

 insects — Class, Order, Family, Genus, Species^ 



