48+ HISTORY OF ENTOMOLOGY. 
I may observe, however, that the Internal Anatomy of 
Insects, a branch of Entomology which on account of its 
difficulty, from the extreme nicety required in dissecting 
them, had before been cultivated by scarcely more than a 
single student in an age, has now attracted numerous 
votaries. In Germany — Carus, Gaede, Herold, Posselt, 
Ramdohr, Rifferschweils, Sprengel, and others, have dis- 
tinguished themselves in this arena: and in France, besides 
the illustrious Baron Cuvier (himself a host), Marcel de 
Serres, Leon Dufour, and very recently, by his elabo- 
rate essays On the Flight of Insects and its wonderful ap- 
du Monde), Esper {Schmetterlinge, TagschmetterUnge), Hiibncr 
{Schmetterlinge, &c), and Ochsenheimer's valuable Schmetterlinge 
von Europa, with the continuation by Treitschke, will afford a use- 
ful avenue. Meigen also, author of a most valuable work on the 
Europaean Diptera, is publishing at this time a work on Lcpidoptcra 
under the title of Europ'dische Schmetterlinge. To the Hymeno- 
ptera Jurine and Christian are the best guides, and to the hiptcra 
Meigen. 
With regard to works in British Entomology in general— Dono- 
van's Natural History of British Insects, and Samouelle's Entomolo- 
gist's Useful Compendium, will be found very excellent helps to the 
student. For the British Genera, the most important work that has 
yet appeared is Mr. John Curtis's British Entomology, in which not 
only are the insects admirably represented, but their tropin correctly 
delineated, accompanied by able descriptions. For the Coleoptera 
of our country, Mr. Marsham's Entomologia Britannica should be 
consulted : for the Lepidoptera, the Butterflies of Lewin, Mr. Ha- 
worth's useful Lepidoptera Britannica, and Miss Jermyn's Bidterfly- 
Collector's Fade Mecum; and for the English species of Linne's genus 
Apis, the Monographia Apum Anglice. A British Fauna Inscctorum, 
under the title cf Illustrations of British Entomology, has at length 
been happily begun by a gentleman (J. F. Stephens, Esq.) who both 
by his accurate knowledge of the subject, and the extent of his col- 
lection of British Insects, is best qualified to undertake it. As far 
as it has proceeded, it is ably executed, and possesses this advan- 
tage, (an advantage seldom to be obtained in works published pe- 
riodically,) that it finishes, as far as possible, as it goes. 
