FISHERY INDUSTRIES OF THE UNITED STATES, 1921. 5 



This net was formerly manufactured exclusively by the Danes. 

 Recently (1921) the demand has been so great that the nets have 

 been made in sections at Bridgeport, Dorset, and sent to Esbjerg to 

 be completed. The cotton used is of a special kind and comes from a 

 firm in Manchester. One difficulty in the use of this net has been 

 that those who use it have been unable to obtain the particular kind 

 of cotton needed for mending purposes, and in some cases when the 

 net is badly damaged have had to send it to Esbjerg for repairs, 

 where this particular kind of cotton is obtainable. It is now being 

 manufactured in England. 



A special winch and coiler are used for this net. Until recently 

 these have been manufactured exclusively in Denmark, but the 

 English concerns are now manufacturing them and improving upon 

 their construction. The price of the winch at present (1921) is 

 $583 and of the coiler $124. A special point about the winch is that 

 both warps are brought thi^ough a fair lead and three turns are taken 

 around each drum; thence the warp is taken over a small drum and 

 passed through an aperture, one side of which has a concave wheel 

 and the other a cog wheel, which holds the warp tight by a spring. 

 When the winch is set in motion, the coiler is actuated by a chain 

 belt, and underneath is a circular metal rotary hopper which coils 

 each warp into a neat coil as it revolves. The drum of the winch 

 can be worked together or separately, so that if any obstruction 

 occurs with one warp the whole net can be hauled in by using the 

 other warp only. Mistakes have frequently been made by putting 

 more than three turns of warp around the drums, for if any obstruc- 

 tion occurs instead of the warp slipping it parts with the strain, and 

 the net is liable to be lost. The winch is placed just forward of the 

 wheelhouse. Part of the fish hold is roofed over with wooden drift- 

 ers to accommodate it. Experiments are being made to place an 

 iron bedplate underneath the winch to strengthen its construction. 



CRAWFISH FISHERY OF WISCONSIN. 



In the Green Bay district of Wisconsin there is a small fishery for 

 crawfish which, with the development of more extended markets, is 

 capable of some expansion. In 1899 the catch of crawfish in this 

 region amounted to 135,861 pounds, valued at $3,498; in 1903, 244,464 

 pounds, valued at $7,897; and m 1917, 80,495 pounds, valued at 

 $4,427, the catch being limited to market demands. 



The fishery is conducted from July to November, shipments being 

 made principally from Green Bay, West De Pere, Sturgeon Bay, and 

 Little Suamico to points as far east as Cleveland and New York, and 

 as far west as Omaha, Kansas City, St. Louis, and Leavenworth. 

 The principal markets are Chicago, Milwaukee, Omaha, and New 

 York. Shipment is usually made in baskets or small boxes of various 

 sizes, carrying 200 to 500 crawfish. In the warmer months crushed 

 ice and sawdust are included in a compartment of the package during 

 periods of high temperature or for long-distance shipment. 



An ingenious pot (Fig. 1) is used to capture the crawfish. Following 

 is a description of one of these pots: Four sides equal, 16 by 8f mches, 

 of 1^-inch lath, four laths to a side; ends square, each with a four- 

 sided funnel that rhas an exterior aperture 4| inches square and a 

 mouth about 1^ by 1 inch, with the upper board projecting over the 

 mouth about f inch ; lower ends each with a triangular cement block, 



