322 PRESERVATION OF CATERPILLARS BY INFLATION. 
The instruments necessary for the operation, besides the tools 
in the hands of every entomologist, are a small tin oven, a spirit 
lamp, a pair of finely pointed scissdrs, a bit of rag, a little fine 
wire and a straw. 
fe 
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3 
bere i Rare TE E T. ue ae 
of the box is perforated by a circular hole 1} inches in diameter. 
It would be well to have this end of glass, and the opposite end 
Fig. 77. 
7 the standard 
Fa higher than the back as he 
Kidd has shown in the sketch. Mi 
also proposes a movable wh 
loop indicated in the woodcut by the dotted line;* but this would 
seem superfluous. 
The wire should be very fine and annealed ; ‘the best is- 
wound with green thread and used for artificial flowers. Tt s% 
* The mae a ales R aaa n af the ovele 
1 g : 
v d 
