40 FISH FAEMING : 



> 



the two outside ponds B, through, horizontal box screens F, 

 and into the centre pond B. 



The height of water in the ponds is regulated, and they are 

 emptied at will each independently, in sections, or the whole 

 of them at one time by means of the controlling sluices, 

 marked G, which communicate with underground drains shown 

 by the dotted lines H. 



I think the drawings and photographs go to prove that it is 



A SET OF REARING PONDS. 



quite a. mistake to associate the formation of a, fish-farm with 

 the construction of expensive rearing ponds fitted with com- 

 plicated apparatus. 



The illustrations are from, photographs of the Earl of Den- 

 bigh's fishery, at Ysceifiog, North Wales, which has been 

 formed recently under the superintendence of Mr. J. B. 

 Feilding, from plans) submitted by Herr S. Jaffe, of Osna- 

 bruck, Hanover. 



Before I pass from the subject of ponds and lakes, there are 

 two or three little matters you may a& well know. And the 

 first of these is the best method of digging a pond. 



