Ins. 1 
INSECTA. 
THE GENERAL SUBJECT. 
W. P. Kibbt, M.E.S., &c. 
Ballard, J. P. Insect Lives, or Born in Prison. Cincinnati : 1879, 
sq. 12mo, pp. 97. 
A popular introductory book on Entomology (c/. Am. Nat. xiii. 
p. 774). 
Bellesme, J. de. Sur une fonction de direction dans lo vol des Insectes. 
0. R. Ixxxix. pp. 980-983. 
In the flight of Insects, the direction is determined by the position of 
the part of the body which cuts the air ; and this again depends on the 
position of the centre of gravity, and the axis of support. In most cases 
the centre of gravity only is displaced. The mode of flight of the various 
Orders of Insects is briefly reviewed. 
Bertoloni, C. Gt. Di quattro diverse specie d’insetti nocivi al piui ed 
agli abeti. Mem. Ac. Bologn. (3) ix. pp. 181-197. 
Contains an account of the transformations and ravages of Pissodes 
j)ini, L., Retinia huoliana^ W. V., Cnethocampa pityocampa^ F., and Pho- 
rocera atripalpis^ Rond. MS. 
Brandt, E. Recherches anatomiques et morphologiques, sur le syst<3mo 
nerveux des Insectes. C. R. Ixxxix. pp. 475-477 ; Ent. xii. pp. 291- 
293. 
Contains a brief summary of the results of the examination of the ner- 
vous system in 1032 species of various orders. 
. Vergleichend- anatomische Skizze des Nerven- systems der Insekten. 
Ilor. Ent. Ross. xv. pp. 3-19, pis. iii. & iv. 
- — . Ueber die Metamorphosen der Nerven-systems der Insecten. Id. 
1. c. pp. 20-30, pis. V. & vi. 
. Vergleichend-anatomische Untersuchungen iiber das Nerven- 
system der Hymenopteren. Id. 1. c. pp. 31-60, pis. vii.-x. 
. Vergleichend-anatomische Untersuchungen des Nerven-systems 
der Kfifer (Coleoptera). Id. I. c. pp. 51-67, pis. xi.-xiii. 
