Bull. U. S. F, C. 1896. (To face page 362.) 
Plate XXXIII. 
Nomenclature. 
a. Bow. 
b. Tangle l)ars. 
c. Tangle.^. 
d. Eyebolts. 
e. Bolts and nuts. 
A Ann. 
q. Eyebolt. 
h. Sinker. 
i. Dredge ro])6. 
j. Dredging b lock. 
k. UrtMlging boom. 
Dlynene-ion.^. 
Bow (steel) : 
Diameter, 11 incdies. 
Width at center, 3 ineljes. 
Width at ends, ‘2^ incdies. 
Thickness at ends, Aiindi. 
Thickness at center, i incli. 
Tangle liars (i ron ) ; 
Length, 5 feet. 
Width, 2i inches. 
Thickness, A inch. 
Number of holes for tangles, 5. 
Diameter of holes, J incli. 
Eyebolts for tangles (iron) ; Diameter, J inch. 
Tangles (iiemli) ■ i^ength, 4 feet. 
Tangle beckets : 21-thread ratline, stn If. 
Arm (mild steel) : Semicircular, diameter, lAteet. 
Width of metal, 2A inches. 
Thickness of metal, J inch. 
Eyebolt (iron) ■. Diameterof metal. square, |inch. 
Sinker (cast iron) : 
Diameter, 9 inches. 
Weight, 150 jiounds. 
THE TANGLES. 
