KNUT DAHL. 



tioned troutseines, who have a httle larger mesh, varying in 

 different localities. 



As supplementary implement, and in order to control my 

 experiments with the eelhandseines, I have also employed seines 

 of different sizes and mesh (fi'om 15—8 knots pr. norvegian foot). 



These seines have in some cases had the dimensions 

 generally used by the fishermen (30 X 3 fath.), sometimes they 

 have been much larger (45 X ^^'^ fath.). 



Of other fishing gear I have occasionally employed ground 

 nets of varying mesh, according to the object in wiew. 



Salmon bag nets of the usual dimensions and of the con- 

 struction, commonly used on the coast, have also been employed. 

 In stead of the regulation mesh hovewer I employed a mesh 

 varying from 8 to 11 knots pr. norvegian foot. 



At such places in the rivers, where net implements could 

 not be employed with advantage, I have used the rod with fly 

 or worm as a bait. 



With moveable fishing gear principally seines, I have since 

 the spring 1898, mainly in the Trondhjem-fiord and its sourroun- 

 dings, and also in many other localities all round our country, 

 made several thousand hauls and cought thousands of salmon 

 and trout. 



The predominating proportion of these fishing experiments 

 I personally supervised, and I personally examined the catch. 

 When my presense was prevented, the fishes, regarding the 

 species of wich my assistants intertained a shodow of doubt, were 

 preserved, and later personally examined by me. 



A small proportion of the fishing experiments have been 

 conducted in other countries than Norway. 



Besides these my own experiments, I have been present at 

 innumerable houls conducted by active fishermen, and had the 

 opportunitly of examining their yield. My researches have also 

 receiver considerable aid throng fishmongers in Norway, Eng- 

 land and Denmark liberally allowing me to examine their stores 

 of salmon and trout.. 



