322 BULLETIN OF THE UNITED STATES FISH COMMISSION. 
The following are the dimensions of the trawl of the Willie and Ada : 
Length of beam feet . . 4C 
Diameter of beam . inches.. £ 
Weight of heads, each... pounds.. 18C 
Height of heads from ground * feet. . 4 
Breadth across widest part feet . . 2H 
Width of iron inches.. 4 
Thickness of iron inch . . f 
Foot rope, length feet . . 98 
Foot rope, size inches.. 7$ 
Length of chain on each end of foot rope feet.. 6 
Size of rope with which foot rope is served inches. . 21- 
Size of head rope - inches.. 2| 
Length of head rope, including chain at one end and allowing enough to make 
fast at each end feet.. 52 
Length of balch-line, including 9 feet at each end to reach from the foot rope to 
beam and fasten feet . . 126 
Whole length of trawl-net from beam to end feet.. 84 
Length of square from beam to baitings feet.. 42 
Length of baitings and belly, each feet.. 30 
Length of cod-end feet . . 12 
Width of opening at lower part of cod-end feet.. 4 
Length of “ poke-line” used for tying up cod-end feet.. 15 
Size of “ poke-line,” (manilla rope) inch.. 2£ 
Length of “ cod-line,” (a rope leading from the lower part of the net to the for- 
ward end of the beam, generally old rope, and used for hauling the bottom of 
the net alongside when it is full of fish) feet.. 96 
Length of towing hawser (size, 7^ inches) fathoms.. 150 
Length of dandy bridle, not including chain on end fathoms.. 21 
Length of chain on end of dandy bridle feet.. 9 
Length of forward and after bridles (6-inch hawser), each fathoms.. 20 
The measurements of the trawl on board of the cutter Sobriety com- 
pared very nearly with the above, the principal difference being in beam, 
foot rope, and weight of the heads, the height of the latter being the 
same. The following will show the differences : 
Length of beam feet . . 48 
Diameter of beam inches . . 9 
Length of foo t rope feet . . 94 
Length of balch-line feet . . 132 
Weight of trawl-heads, each pounds.. 230 
The following are additional details of the construction and equip- 
ment of a beam-trawl of the size mentioned above : 
In making the net, from 200 to 220 meshes are “ set up ” for the head 
of the “square,” and from 190 to 200 meshes at the bottom. The 
baitings or “ batings,” which are joined to the square, are “set up” with 
the same number of meshes as the bottom of the square, either 190 or 
200, and are “ braided down ” to 50 meshes, with 10 or 12 feet cod-end 
added. 
The “ ground ” or “ belly ” is made the same as the baitings. 
The wings would be about 43 feet long. They would be “set up” at 
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