27 



Food of insects ; Stratagems of insects ; Habitations of solitary and social 

 insects. 



Vol. II. — Societies of insects (imperfect and perfect societies) ; Means by which 

 insects defend themselves ; Motions of insects ; Noises produced by insects ; 

 Luminous insects ; Hybernation of insects ; Instinct of insects. 



Vol. III.* — Definition of the term insect ; Egg state ; Larva state ; Pupa state ; 

 Imago state ; External anatomy of the head and its parts ; Anatomy of 

 the trunk and its parts and organs ; Anatomy of the abdomen and its 

 parts. 



Vol. IV. — Internal anatomy and physiology of insects ; Sensation ; Respiration ; 

 Circulation ; Digestion ; Secretion ; Reproduction ; Motion ; Diseases of 

 insects ; Senses of insects ; Orismology, or explanation of terms ; System 

 [or classification] of insects; History of Entomology; Geographical and 

 local distribution of insects ; Seasons, &c. ; Entomological instruments ; 

 Modes of collecting, breeding, preserving and investigating insects ; List 

 of authors, &c. 



Vol. I., London, 1815 ; Id., 2nd edition, London, 1816 ; Id., 3rd edition, London, 

 1817. 



Vol. II., London, 1817; Id., 2nd edition, London, 1818 ; Id., 3rd edition, London, 

 1822. 



Vols. III. and IV., London, 1826. 



Vols. I. II. III. and IV., 4th edition, London, 1828 ; Id., 5th edition, London, 

 1838. 



Vols. I. and II., 6th edition, with much additional matter, London, 1843. 



Index to 4th and 5th edition, London, 1838. 



Translated into German by Oken, and published 1823, 24, 27 and 33. 



Some of the chapters of the first and second volumes, also translated by Oken 

 and published in the ' Isis,' and others translated into French, and pub- 

 lished in Silbermann's ' Revue Entomologique.' 



15. ' A Century of Insects, including several New Genera described from his 



cabinet.' Linn. Trans, xii. pp. 375 — 453. Read November 4th, 1817. 

 Previous to the commencement of the present century, very few insects from 



* The third and fourth volumes of this work were not published until 1826, in con- 

 sequence of the continued ill-health, at that period, of Mr. Spence, " which has de- 

 volved upon Mr. Kirby a considerable increase of labour, and demanded a greater 

 expenditure of time than would otherwise have been required, for though Mr. Spence 

 put every facility in Mr. Kirby's power, and had drawn up a rough copy of every 

 letter belonging to his department : yet as most of them had been written several 

 years ago, many curious facts and a great variety of interesting information subse- 

 quently derived from various sources, were necessarily to be inserted, and the whole 

 prepared for the press.'' — Advertisement, vol. iii. It is subsequently stated, that the 

 theory of instinct given in the second and fourth volumes, is from the pen of Mr. 

 Spence. The above is, I believe, the only indication of individual authorship in these 

 volumes which has hitherto been published. 



