4 COLLECTING AND PRESERVING INSECTS. 



which fit to a nut sunk and soldered into one end of a brass 

 tube (d). "When so fitted, they are secured by a large-headed 

 screw (e) threaded to fit into the nut-socket, and with a groove 

 wide enough to receive the back of a common pocket knife 

 blade. - The wire hoop is easily detached and folded, as at c, 

 for convenient carriage ; and the handle may be made of any 

 desired length by cutting a stick and fitting it into the hollow 

 tube a, which should be about six inches long. It is well to 

 have two separate hoops one of lighter wire furnished with 

 silk gauze or some other light material for catching flying in- 



Fig. 2. 



sects ; and one which is stouter and furnished with a net of 

 stronger material for sweeping non-flying specimens. 



"Another still more simple, but less convenient, frame is 

 thus described by my friend F. G. Sanborn, of Boston, Mass. : 



'"Make a loop of strong iron or brass wire, of about 3-16ths 

 of an inch in thickness, so that the diameter of the loop or 

 circle will not exceed twelve inches, leaving an inch to an inch 

 and a half of wire at each end bent at nearly right angles. 

 Bind the two extremities of the wire together with smaller 

 wire and tin them by applying a drop of muriate of zinc, then 

 holding it in the fire or over a gas flame until nearly red hot, 

 when a few grains of block tin or soft solder placed upon 



