It is necessary, therefore, that he shoukl 

 be provided with proper instruments to collect 

 them, and to preserve them when collected 

 The following is a description of the apparatus 

 used by the London collectors : for the detail 

 of which, the author is partly indebted to the 

 works of Messrs. Kirby and Spence, and Mr. 

 Samoiielle. 



A Clap Net, (plate, fig. 7.) is the first in- 

 strument in point of importance. This is simi- 

 lar to what is called a Bat-fowling net, and 

 should be made of green or white gauze or mus- 

 lin 5 the advantage of the latter colour is, that 

 minute insects are sooner discovered than if the 

 net were green, but a green net must be used for 

 mothing. The net rods may be made of ash, 

 hazel, or lance wood, but the latter is best. 

 Each rod may be from four to five feet in 

 length, (divided into three or four joints, for 

 the convenience of carriage) round, and smooth, 

 half an inch in diameter at the base, and gra- 

 dually tapering : plate, fig. 8, one of the rods 

 complete ; «, the cross-piece, which should be of 



m^ 



