[123] FISHERIES OF THE UNITED STATES. 767 



Wood's boat attaching and detaching apparatus— Continued. 

 "We now manufacture the roller Bona prolongation of the back 

 plate of A, so that the apparatus is fastened in together. In 

 case of a curvature in the apron of the stem or stern, this back 

 piece can easily be bent to suit. We also have substituted 

 chain for the wire rope, securing it at one end to the link by a 

 shackle, so that, when it is placed in a boat, an excess of chain 

 being always furnished, it can be taken up to the right length, 

 cut off, and the shackle inserted in the proper link." (Extract 

 from the instructions of Admiral William Eeynolds, Chief of 

 Bureau of Equipment and Eecruiting, issued January 30, 1875, 

 for guidance in handling boats fitted with the Wood appa- 

 ratus.) 



rowlocks and thole-pins. 



Davis's standard rowlock. 



"Twenty specimens of Davis' standard rowlocks, made in two pat- 

 terns, with opening on back of bracket or front, as desired. 

 Back opening always sent unless otherwise ordered. Made 

 of three materials, galvanized, malleable iron, lacquered gun 

 metal, or hard composition, and polished gun metal. Made 

 in four sizes, If inches, 2 inches, 2| inches, 2| inches in width 

 between the narrow part of the horns. Frank E. Davis, Glou- 

 cester, Mass., exhibitor. 



"The horns of these rowlocks are very wide, thus saving much wear 

 to the oars. They are easily attached to the boat by screwing 

 to the gunwale without cutting the rail, thereby strengthening 

 instead of weakening it. They can be instantly turned down 

 when not in use, leaving the rail as smooth and clear as if they 

 were taken out. This is a great advantage in loading luggage, 

 &c. They can be placed in position in a second, and thus are 

 always ready for an emergency. The pattern with opening on 

 back cannot be lost overboard, misplaced, or stolen, as they 

 are securely locked in the socket when applied to the rail. They 

 revolve in their sockets, which renders it almost impossible to 

 trip the boat in a heavy sea. They are almost noiseless when 

 in use, as they are nicely fitted. They are very strong and 

 simple, as they are composed of but two pieces, and cannot 

 get out of order. The pattern that has the opening on the 

 front of bracket is specially designed for all cases where it is 

 desirable to take the rowlock from the boat at any time, as in 

 harbor boats, gunning floats, &c. 



"The same general shape as described in the other pattern is retained, 

 and the advantages there mentioned of durability, noiseless- 

 ness, and manner of application are the same. In this pat- 



