1 8 Trout Culture. 



allowed to obstruct the light. A dark hatching- 

 house is a misery and an abomination. As to the 

 size of the cistern or cisterns, that must be regu- 

 lated by the magnitude of the contemplated 

 operations ; whatever this may be, their capacity 

 should be ample. They may be made of wood, 

 lined with zinc or lead, or of galvanized iron. 



Having got the cistern fixed, the next 

 thing is the filter ; and, in spite of all that 

 has been said in favour of flannel and sand 

 as the medium, we ourselves have great faith 

 in charcoal, and advise that the matter be en- 

 trusted to Mr. Fred Lipscombe, of 44, Queen 

 Victoria Street, Mansion House,. London. 



In his hands we know we are safe, and if 

 the filter be examined and cleansed by a com- 

 petent person once or twice a year, a constant 

 supply of pure water is ensured. A good, 

 well-trapped drain must be constructed in such 

 a position as may be best fitted to receive the 

 waste water after it has done its work ; and it 



