206 SPORT IN NORWAY. 



raised two feet above the ground, and was not, therefore, 

 protected with such a lid. A large quantity of eggs 

 had been hatched out, when, lo and behold, one fine 

 morning the young fry had nearly all disappeared ! A 

 number of traps were accordingly set on the floor of the 

 house, and the following morning the intruder was 

 captured. It turned out to be a water-rail which had 

 found ingress through the mouth of a drain. 



The Dytisci, Hydrophili, and their larvae, and the 

 larvae of the Libellula and Agrion are also very dan- 

 gerous enemies. The Libellula depressa is especially 

 a deadly foe, and will even devour the two to three 

 months old fish. It is extremely tenacious of life ; and 

 has been known after having been kept a whole day 

 in spirits to recover when placed in water where there 

 were young fish, and in a very short time to commence 

 attacking them as if nothing had happened. 



