9 



fish become sickly, lean and bony ; and on the contrary, 

 when the regulations are attended to which I have laid 

 down, the fish will be healthy, fleshy and fat. 



By this it will be seen that jack become a useful appen- 

 dage in well-regulated ponds, tantamount to an absolute 

 necessity, but with the necessity a property, as it will be 

 found that jack, carp and tench thrive and grow in equal 

 proportion after this system. 



In stocking ponds it must be strictly observed that the 

 jack, carp and tench be all of the same season or spring 

 spawn ; and the period for brooding the pond is towards 

 the end of October, or if the season be open and mild, 

 early in November, for the following reasons. Carp and 

 tench being fish of the same habits, they slam or mud at 

 the same period, lying torpid through the winter months, 

 so that they keep secure from the attacks of the juvenile 

 jack; the jack at that age finds sufficient food in worms 

 &c. to subsist upon : as the spring advances, when the 

 carp and tench leave their winter lairs, the jack then 

 in turn become sickly as their spawning season approach- 

 es, and consequently do not annoy the carp, much less the 

 tench; this brings them through April, when the jack 

 spawn, and they remain quiet from that time until the wet 

 season of July. 



In June both the carp and tench spawn, and although 

 in very small casts for the first season, yet they are far 



