134 Th e Book of Bugs. 



By the way, before I forget it, carriage linings are 

 furiously attacked by moths. It is well to spray them 

 with benzine in April, June, and August. Another plan 

 is to sponge the linings carefully with corrosive sublimate 

 dissolved in alcohol. Don't get it too strong, or it will 

 leave a white stain. And whatever you do, don't taste 

 it, for it is deadly poison. Indeed, it should be well re- 

 membered that war, though against insects, is still war, 

 and waged with deadly weapons that do not discrimi- 

 nate between friend and foe. 



These that I have mentioned are domestic remedies. 

 In the large cities where there are cold storage ware- 

 houses, protection can be guaranteed. The most eco- 

 nomical degree of cold has been found to be 40 Fahren- 

 heit. That does not kill the grubs, which can stand it 

 as low as 18 without being much the worse for it so 

 long as it is steady cold. But if they are kept at 18 a 

 while and then shifted back and forth to 40, the change 

 in the weather is bad for their health. 



