Mr. W. Sells's Entomological Notes. 101 



XVI. Entomological Notes. By the late W. Sells, Esq., 



M.E.S. 



My dear SiK, Norbiton, March 23, 1839. 



On the other side is the little sketch of my plan for arranging 



Entomological illustrations which I promised you, and perhaps 



you may be able to prevail upon some of the young and active 



among the lovers of Entomology, to devote their diligent attention 



to working out some of its compartments ; as by giving a rational 



and useful character to the pursuit, we add so materially to the 



interest, as well as promote the dignit}^ of the science which we 



cultivate. 



Believe me always, dear Sir, 



Very faithfully yours, 



William Sells. 

 To J. 0. Westwood, Esq. 



A Plan for Arranging a Cahinet containing Illustrations of the 

 Habits and Economy of Insects. 



A CABINET of insects, intended to contain illustrations of the 

 habits and economy of the different tribes, and to be of a com- 

 prehensive nature, should consist of not less than sixteen or 

 eighteen ordinary sized drawers, with two sufficiently deep for 

 the larger sized nests, &c., and two more of an intermediate 

 depth. Table-cases for public institutions (e. g. the British 

 Museum) are of course preferable. 



The subjoined scheme is that which I have mainly followed in 

 my own arrangement. 



Transformations — as showing the several conditions of insect 



life. 

 1st, Separately — Ova, or eggs, arranged according to the dif- 

 ferent orders ; egg-shells ; egg-cases, as of Mantis and Blatta, 

 and sections to show the interior of the same. 

 2nd. Larvae, according to the different orders, with specimens 



showing the several moults of particular insects. 

 3rd. Pupae, according to the orders. 

 4th. Shells, or exuviae of pupae. 

 5th. Cocoons and nests. 

 Combined — Showing interesting examples from the various orders 



VOL. III. I 



