[93] FISHERIES OF THE UNITED STATES. 737 



Cross-mat for outrigger (starboard side) — Continued. 



Gloucester, Mass., 1883. 57,839. XJ. S. Fish Commission. 

 Lashed to end of starboard outrigger for main-topmast back- 

 stay to prevent chafing of mainsail, staysail, and gaff-topsail 

 halyards, &c. 



Mat for main cross-trees. 



Canvas, to which are sewed manila thrums ; 14 brass grommets 

 along edges of canvas for roving-line to pass through. Length, 

 4 feet ; width, center 7 inches, end 4 inches. Gloucester, Mass., 

 1883. 57,835. U. S. Fish Commission. Used on main cross- 

 trees to prevent main-peak halyards from chafing. 



MAT FOR MAIN-BOOM TOPPING-LIFT. 



Ponce mat of manila spun-yarn, woven by hand and filled with 

 manila thrums— bunches of short rope-yarns. Tarred house- 

 line at corners for lashing. Length, 2 feet; width, 5 inches. 

 Gloucester, Mass., 1883. 57,837. U. S. Fish Commission. 

 Used on main-boom topping-lift to prevent the lift from being 

 chafed by the main-peak block. 



Mat for main-boom band. 



Bag rickal mat, made by weaving manila thrums (short rope-yarns) 

 into two long pieces of manila spun-yarn, which are finally 

 sewed together to form the mat. Length, 3^ feet; width, 4£ 

 inches. Gloucester, Mass., 1883. 57,840. U. S. Fish Com- 

 mission. This mat is fastened over the iron band in the slings 

 of the main boom to prevent the band from chafing foot of 

 mainsail. 



42. Blocks, sheaves, and dead-eyes. 



Patent tackle-blocks. 



Galvanized-iron shells and sheaves with steel pins; hooks and 

 straps of wrought iron. Sizes 5, 7, 9, and 11 with single sheave $ 

 sizes 6, 8, 10, and 12 with double sheave. Loose hooks. Mid- 

 dletown, Conn. 54,702. Wilcox, Crittenden & Co. 



Tackle-blocks. 



Made of galvanized iron, with single eye. Series with single and 

 double sheaves. Used largely by dory fishermen along the 

 New England coast. Middletown, Conn. 25,152 and 54,704, 

 Wilcox, Crittenden & Co. 



Tackle-blocks. 



Made of galvanized iron, with double eyes. Series with single and 

 double sheaves. Middletown, Conn. 54,703-54,705. Wilcox, 

 Crittenden & Co. 

 2444— Bull. 27 47 



