10 



larger than would be beneficial for the stews were no jack in 

 them ; and from this period the jack becomes useful, for as 

 he gets more and more vigorous, so does he keep down the 

 brood and thrive himself: thus by making an easy prey, it 

 seldom if ever occurs that a jack chases a carp of his own 

 age, the result is that through the clearance of the brood 

 the stock finds sufficient food to live and thrive upon. 



Until now I have not adverted to other fish, but on no 

 account whatever should other fish be admitted into the 

 stews or ponds ; eels particularly ought to be kept out, as 

 they do great mischief. 



Returning to the subject of the succession ponds being 

 fished every three years, it is to be borne in mind that the 

 store at that age is fit for market, and the calculation for 

 three years out of three acres, would give on an average as 

 follows : 



600 Carp, at 3 Ibs. each, 2100 Ibs. 



60 Tench, ....at 4 Ibs. each, 240 Ibs. 



60 Jack, at 34 Ibs. each, 210 Ibs. 



Total weight of store, 2550 Ibs. 



Supposing the fish to be worth Is. per lb., the value would 

 be 127. 10s. for three years, or 42. 10s. per annum ; but 

 were only half the price obtained, then as the first expense 

 is the only one, it must be termed a profitable rental, espe- 



