22 Trout Culture. 



fitted to our purpose. Terra-cotta, slate, and 

 wood have been mentioned, but we feel disposed 

 to select slate for the use of the amateur as 

 being very clean, not so liable to break, chip, or 

 crack as terra-cotta or earthenware, and not so 

 likely to leak as wood. They are generally made 

 about two feet ten inches long, six inches wide, 

 with a depth of water of about three inches. They 

 can be obtained ready fitted with spouts from 

 the attendant or curator, Museum of Fish Cul- 

 ture, South Kensington ; or from Messrs. Beck 

 and Beck, Beck's Wharf, Isleworth ; and these, 

 where expense is no object, leave nothing to be 

 desired. They are arranged in tiers one above 

 the other, so that the spout of one will deliver to 

 the next below it. 



If, however, expense be a matter of con- 

 sideration, wooden boxes may be used ; but 

 they must be very carefully made by a good 

 carpenter, and very accurately fitted with tongue 

 and groove joints ; these joints dressed with red- 



