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ECONOMIC ZOOLOGY 



which the house is constructed. The lower part of the slats are cov- 

 ered with wire netting, at the top of which is a belt of metal, about a 

 foot wide, to keep the rodents from climbing over the netting. 



A cheaper method is to cover the entire floor, beneath the boards, 

 with netting, with the same belt of metal and netting around the sides, 



