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THE ENTOMOLOGIST. 



b, k, and c, k, are two sheets of glass converging from the 

 front of the box, down from the top corner, b, and up from the 

 lower corner, c, toward a point, k, in the centre where they do not 

 quite meet, but provide a long narrow entrance across the 

 centre of the box through which the moths can pass in the 

 direction of the light, towards which they are guided and assisted 

 by the converging plates of glass. The opening I find most 

 convenient is about l£ in. wide. When inside the box the moths 

 are not very likely to find their way out again through the slit k. 



The moth-chamber referred to above is the space, e, p, c, k, b; 

 and having got the moths in, the next thing is how to get them 

 out when the trap is examined next morning. At first I had 

 the roof of the box to open as a lid, and the plates of glass in 

 the front to slide out, but the objection to both these plans is 

 that the opening is so large that the moths may fly out while you 

 are trying to box them inside the trap. I now have small 

 sliding doors, (l, l), two on each side, only large enough to admit 

 the hand and killing-bottle. This arrangement is safer than the 

 other, but not very convenient. I have no arrangement for 

 automatically killing the moths like that described on p. 103 of 

 Dr. H. G. Knagg's little book, but I am thinking of trying the 

 effect of a bag of bruised laurel leaves placed inside the moth- 

 chamber. The killing-drawer attached to the American moth- 

 trap above alluded to seems to me too intricate for practical 



