C.— APPARATUS TO A GREATER OR LESS EX- 

 TENT AUTOMATIC. 



V.— NETS. 



17. Entangling- nets. 



meshing-nets (entangling in meshes). 



FIXED NETS (NETS HELD IN POSITION BY MEANS OF STAKES OR ANCHORS). 

 WHITEFISH GILL-NET. 



Model, scale 1 inch to foot. Strung between driven stakes and 

 hung to wooden floats that keep the net from sagging. Wau- 

 kegan, 111., 1876. 25,751. Gift of J. W. Milner. These nets 

 are used in Lake Michigan for the capture of whiteflsh. 



Shad gill-net. 



Model. American Net and Twine Company, Boston and New York. 

 26,126. Used in rivers of the Atlantic coast. 



" These nets are knit of linen thread (22-50, 3-cord, and 20-60, 2-cord). 

 They range in length from 50 to 200 fathoms, and in depth from 

 25 to 90 meshes, 4f to 5 inch mesh. They are used exclusively 

 as drift-nets. On the Connecticut Elver about 4,000 pounds of 

 this netting are used annually. The average weight of a net 

 is 30 to 40 pounds, its depth 45 to 50 meshes, 5^ to 5J inches. 

 On the Hudson River about 7,500 pounds are annually used, 

 fine- threads 50-75, 2-cord), 100 to 200 fathoms in length, and 

 from 50 to 90 meshes in depth, 4f to 5 inch, weight from 15 to 

 30 pounds to the net. In the Delaware, Potomac, and Chesa- 

 peake 20,000 pounds are used, from 30 to 60 meshes in depth, 

 and 5£ (30 to 40, 2-cord) length, 75 to 100 fathoms. In the 

 rivers of North Carolina nets are made from coarse twine 

 (22-35, 3-cord, and 20-35, 2-cord) 25 to 40 meshes in depth, 

 5-5£ gauge ; their length is about 100 yards. About 25,000 

 pounds are used annually. In the rivers of South Carolina 

 the twine is slightly finer than in North Carolina (25-35, 

 3-cord), 25 to 60 meshes deep, the size otherwise about the 

 same; 1,500 pounds are used annually. In Georgia and Florida 

 about 6,000 pounds are used. This netting is knit from linen 

 thread (30-40, 3-cord, and 25-35, 2-cord) 40 to 60 meshes in 

 depth ; 4f to 5J mesh. About 18 to 24 pounds are used in a 

 net; its length, 100 yards." — (A. A. French.) 



[163] 987 



