58 SCIENCE OF FISHING. 



Twisted cotton lines are used only for catching catfis.i 

 and such bottom feeding fish. Braided cotton lines are used 

 for the same purposes; also for ocean fishing and for troll- 

 ing. Braided and twisted linen lines are very strong and are 

 used for all kinds of salt-water fishing and lake trolling. 



The sizes of twisted linen Cuttyhunk lines are shown 

 here, the numbers showing the number of threads of which 

 they are made. Each thread is tested to stand a strain of 

 two pounds, so a thirty-thread line will stand a strain of 

 sixty pounds ; a nine-thread line will stand a strain of 

 eighteen pounds, etc. These lines are very hard and smooth. 



Number of Threads. 

 30 ^*Mssa 



24 



21 



18 

 15 



12 



Sizes of Twisted Linen Lines. 



Some of those made by the Kingfisher people are water- 

 proof, and all of them make excellent lines for all-around 

 fishing. A No. 6 Cuttyhunk linen line is no larger than an 

 ordinary thread, but will stand a strain of twelve pounds. 



A line that is excellent for trolling and also good for 

 salt-water fishing is made by braiding silk over a linen 

 center. It is a very strong line but rather stiff and rough 

 for casting. Pure silk lines are not durable when used in 

 salt-water. 



The plain undressed silk lines are the kind for bait- 

 casting. They are numbered differently but the sizes are a 



