3 



English or round-bodied carp, the other, little known in 

 this country but equally well framed, is called in Germany 

 the Spiegel (Mirror) Carp, from the beautiful blue-mottled 

 scales along the sides, which are much larger than those 

 of the rest of the body ; this sort could be easily obtained 

 from Hamburg or any part of Germany, and would well 

 repay the trouble of importation. They are particular- 

 ly handsome, and bear a similarity to the red-legged 

 compared to the common grey partridge, with the excep- 

 tion that the Spiegel carp is the better flavoured, and in- 

 variably fatter than the other. Carp therefore being so 

 productive, require a proportionate check by a given quan- 

 tity of jack in the stews, otherwise the water would soon 

 become so swarming with brood, that food would be 

 wanting to support the stock, and the result would be 

 a failure in the quality of the fish-draught. 



It has been fully proved that a given space of earth can 

 produce only a certain quantity ; so only can a given space 

 or quantity of water produce a certain quantity, either of 

 vegetable matter or animalcules : and curious as it may ap- 

 pear, yet it is as true as curious, that by storing only the 

 proper number of fish adapted to the water, the weight in 

 three years will prove equal to what it would have been had 

 twice the number been placed therein, so that the smaller 

 number produces the same weight as the larger, from a 

 given quantity of water. By overstocking the water the 



