12 FLY-FISHING. 



kept off those rapacious animals, the otters, and the 

 man kept off the wild fowl that frequented the rivers 

 and lakes ; none were permitted to live. Ducks, hoth 

 wild and tame, are very destructive to the fry, and all 

 these were destroyed. The old fish were allowed to 

 leave the canal in February, and in this, the fifth sea- 

 son, fifty pairs escaped, after having been there all the 

 winter ; they were all quite healthy. The fry were 

 allowed to leave about April. 



"The bull trout used to be very plentiful there, but 

 a plan was adopted to destroy these fish, so destruc- 

 tive to the fry. A lamp was invented, three feet deep, 

 with two tubes or pipes, the one to conduct air down 

 to the lamp, which was thirty inches below the water, 

 the other to carry off the heat, &c. This lamp was 

 supported by a cork. There being a great number of 

 these bull trout in the river, the lamp was taken to the 

 lake, and pulled gently down the river, in the night- 

 time, to a large pool, when a net was cast round the 

 lamp, and on taking it on shore, more than 200 large 

 bull trout were killed, weighing from six to fourteen 

 pounds each, and some of them were full of spawn. 



" No rod-fishing was allowed during the fry sea- 

 son, and the salmon-fishing was invariably stopped 



