62 



American Fislieries Society. 



the added weight of the large seines must be moved by a larger 

 force than would otherwise be required. It is also important to 

 work as rapidly as possible when a school of fish is at hand, and 

 the added weight of a heavily-tarred seine can not fail to reduce 

 the speed of operations, and increase the danger of losing the 

 school. 



230 



2?0 



210 



ZOO 

 o 

 g 190 



2 180 

 a 170 



3 ISO 



I 150 

 r MO 



i 120 



no 



OAI&IXAL 

 Wtl6HT->-|00 



SO 



80 



70 



BCOtFSH IJKLMNOPORSX 

 SrMR0L5 OFCRUtSlYATIVtS 

 INCRtAStlNWCIGHT 



Fig. 13. — Increase in weight of cotton lines caused by one application of 

 the various, preservatives. 



(2) When cotton line is selling at 25 cents per pound, it is 

 obviously profitable for the producer of, or dealer in, lines to tar 

 the line; by so doing he sells tar at 25 cents per pound. It is 

 correspondingly unprofitable for the fisherman to buy line with- 

 out a consideration of the added weight of the tar. This is an 

 important item of cost where netting is used in large quantities. 



