16 APHORISMATA EXTOMOLOGICA. 



catalogue, as well as the part relating to the books, through the desire 

 to benefit a person who seems to be a deserving man: — 



1. — -'^An improved book box, which excludes the air and dust from the 

 insects, covered with green book cloth, gilt labels, corked top and bottom, 

 sixteen inches by twelve; the same as those made by me for the British 

 Museum, and when shut up they resemble two volumes of a book: 

 twelve shillings each. 



2.^The next size, finished in the same stylo, and corked top and 

 bottom, thirteen inches by nine and a half: seven shillings. 



3. — Deal store boxes, corked top and bottom, sixteen inches by 

 fourteen: eight shillings. If made for foreign insects, one shilling extra. 



4. — Mahogany collecting boxes, from four shillings and upwards. 



5. — A drying safe or box, with four trays corked, a drawer with 

 divisions for pins, perforated zinc front and back, lock and key complete : 

 twelve shillings and sixpence. 



G. — An improved whalebone net, which answers all the purposes of 

 sweeping, beating, or for collecting insects on the wing: reduced to 

 twelve shillings and sixpence. It is portable, and shuts up in a case 

 like an umbrella. 



Sheets of prepared cork for cabinet drawers, sixteen inches square: 

 two shillings each. 



All kinds of boxes and apparatus on improved principles made to 

 order: prices in proportion as stated above." 



I need only remark in conclusion that while a cabinet, especially if 

 a large one, is rather an expensive affiiir, the drawers costing ten 

 shillings each, the books, on the principle of a division of labour, or rather 

 of spreading an expense over a longer time, cause it to be hardly felt. 

 One more last word: I recommend the books to be kept upwards, as 

 if on a shelf, and not on their sides, for otherwise that which is a 

 detriment to the preservation of insects in ordinary boxes, will exist here 

 also, namely, the dust will fall from the specimens on the upper side, 

 and lodge on those on the lower one. 



"death in the bottle." 



This is a true motto — one which it behoves others as well as 

 Entomologists to bear in mind; it is, however, only with the latter that 

 I have at present to do. Various opinions have been set forth at 



