178 



WINTER ANGLING 



for this, so nothing further need be said about 

 it. The arrangement for an outlet must now be 

 made. An ordinary wooden faucet will do capi- 

 tally ; but you must boil it in water for some time 

 before using it, in order to extract any sap, etc., 

 in the wood likely to taint the water. When dry, 

 drive it into a hole previously bored at a distance 



Fig. so.— Filter. 



of about six inches from the bottom. An India 

 rubber pipe will connect this with your next 

 necessary article, namely, a filter ; for trout must 

 have the purest water when they are very young. 



Now, the filter (Fig. 80) is very easily made in 

 this wise. Procure a large flower-pot, the largest 



