PRESERVATION OF INSECTS. 283 



909. Round each drawer should be a cell for 

 camphor, which preserves the specimens from 

 mites, and the top of the drawer should be covered 

 by a pane of flatted glass neatly fitted in a frame. 

 Care must be taken to make this frame fit as 

 nicely as possible in order to keep out dust. 



910. Cabinets of this kind surmounted by a 

 book-case are no dissight in a room ; three or four 

 such cabinets surmounted may occupy the side of 

 a room. In placing these cabinets side by side, 

 care must be taken that the doors are so made as 

 to open freely without any aperture between them. 



911. Before the insects are placed in the cabi- 

 net, the papered bottoms of the drawers must be 

 ruled in columns with a black lead pencil, the 

 columns varying in width according to the size of 

 the insect : the insects should then be placed in 

 with great care and neatness, beginning with the 

 Lepidoptera. 



912. Mr. Samouelle, Mr. Stephens, and Mr. 

 Curtis, have each published a list of British Insects, 

 printed on one side only, purposely for labelling 

 cabinets. The entomologist should select which of 

 these he most approves, and cutting out the names, 

 carefully fasten them in the drawer by means of 

 pin-points ; in doing this he must use a pair of 

 common pliers. 



913. The generic names are printed in capitals ; 

 these should be placed above the insect, and the 

 specific names, printed in small characters, below. 



