[31] FISHEKIES OF THE UNITED STATES. 855 



Oyster-dredge and hoisting apparatus. 



Model. Illustrating the method of hauling oyster-dredges in the 

 Delaware and Chesapeake Bays. Received from C. S. Belbin, 

 Baltimore, Md. 31,792. 



Scallop-dredge. 



Frame of iron ; net, iron-mesh. Yalue, $4. 57,088. J. T. Brown. 

 Style used at New Bedford. Mass., at present time. 



Scallop-dredge. 



Frame of iron ; net, twine-mesh. Value, $3. 57,087. J.T.Brown. 

 Style formerly used at New Bedford, Mass. ; now obsolete. 



Scallop dredge or scrape (usual style). 



Triangular-shaped frame, consisting of two iron bails forming sides, 

 their junction the apex, and an iron rim forming the base of 

 the triangle ; bails, 3 feet long, bent at 4 inches from ends at 

 right angles to plane of frame and riveted to ends of rim ; rim, 

 30 inches long, 1 inch wide; plane of rim at right angles to 

 that of frame; bag, 2 feet deep; upper side of twine (2-inch 

 . mesh) attached to a small iron cross-bar across bails, 8 inches 

 from ends ; lower side of iron rings, 2 inches in diameter, six 

 tiers, joined to edge of rim; across bottom of bag is lashed a 

 small stick, 27 inches long, f inch in diameter, for convenience 

 in handling bag and shaking out contents. Value, $5. 56,035. 

 U. S. Fish Commission. Used in Narragansett Bay, Rhode 

 Island, on hard bottoms. 



Scallop-dredge (kettle-bail variety). 



Frame triangular in shape, consisting of two iron bails joined at 

 apex of triangle and forming an eye for attaching dredging 

 rope. The base of triangle is formed by the "rim," a flat, 

 slightly curved piece of iron, 1 inch wide and 30 inches long. 

 The rim and ends of bails are joined by means of eyes welded 

 in each, so as to permit the rim to work loosely and assume 

 any inclination to the plane of the bails which may be ren- 

 dered necessary by the character of the bottom. Three inches 

 from the ends, and before joining the rim, the bails are bent 

 in a direction at right angles to the plane of the frame. A 

 small iron cross-bar extends across the bails 8 inches from 

 ends, to which is attached the upper part of the " bag," which 

 is of twine-netting, 3-inch mesh. The bag is 2 feet deep ; under 

 side composed of six tiers of iron rings, 2 inches in diameter. 

 At bottom of bag is lashed a small stick, f inch in diameter 

 and 27 inches long, for convenience in handling and shaking 

 out contents. Value, $5. 56,934. U. S. Fish Commission. 

 Used in Narragansett Bay, Rhode Island, on muddy bottoms. 



