174 FISH CULTURE. 



of the small lakes in the south of Scotland abound 

 with them, and in some of the lakes they seem to do 

 well, often being taken of three and four pounds in 

 weight. For marketable and table purposes a perch 

 of from half a pound to a pound is to be preferred. 

 If ponds are fit for trout, having a good stream into 

 them, I would put no other fish whatever in with them. 



Mr. Boccius, in his work upon Pond-fish, re- 

 commends a species of carp found in Holland, 

 called the Spiegel, or Mirror carp. He avers that 

 it is as far superior to the ordinary carp for table 

 purposes, as it excels it in beauty of appearance. A 

 curious feature worth noting in this Spiegel carp 

 is a row of very large scales of various sizes, along 

 the side, which are of a mottled blue colour. It 

 appears at times to grow to a very large size. 



Gudgeon, as I have before stated, will do well in 

 ponds, and may advantageously be introduced into 

 them. 



I now come to the Pike, and little more can be said 

 of him, as already he is in many instances an intruder 

 and too widely spread, and monopolises many waters 

 which formerly were full of fine trout. In some lakes, 

 as I have before said, he is for a time useful, and 

 the trout increase in size ; but the breed of pike in 

 these lakes, if they have managed to establish a breed, 



