CATALOGUE OF THE WATERCRAFT COLLECTION. 103 



It was a flat-bottomed, carvel-built, decked vessel, with vertical sides 

 and square, vertical stern; full, convex, nonflaring bow; straight 

 stem; shallow keel along each side of bottom; straight on top. 

 Deck consisted of a long, narrow house, with two doors and two 

 small windows on each side. 



Dimensions of hoat. — Length, 60 feet ; beam, 12 feet ; depth, 6 feet ; 

 length of house, 42 feet ; width, 8 feet ; height, 7 feet. Scale of model, 

 one-half inch equals 1 foot. 

 Made in the Museum. Cat. No. 160,305 U.S.N.M. 



FIG. 20. OHIO RIVER KEEL BOAT. 



Model of horse treadmill ferryboat. 



This boat was built at Hoboken, N. J., in 1813, by Col. John Stevens, 

 to ply between that city and New York after the enforcement by 

 Fulton of the monopoly granted him by New York State to navigate 

 the waters of that State by steam. 



Six horses attached singly, each to a separate sweep, walked in a 

 circle, revolving a horizontal wheel which communicated the power 

 to the paddle-wheel shaft by means of beveled gearing. The periph- 

 ery of the wheel revolved at nearly the same speed that the horses 

 walked. 



Dimensions of vessel. — Two hulls 90 feet long and 16-foot beam were 

 placed parallel about 8 feet apart, the intervening space being decked 

 over, making a boat about 40 feet wide. A single paddle wheel 10 

 feet diameter, with paddles 6 feet wide, was placed between these 

 hulls near the stern. Scale of model, three eighths inch equals 1 foot. 



Two small cabins were located on the deck near the stern for pas- 

 sengers. Space for horses and carriages being on the forward end, 

 the boat was compelled to move backward some distance from the 

 dock, when the direction in which the horses were walking was re- 

 versed and the boat moved forsvard. These boats were used only a 

 few years, when, Fulton's privilege being declared unconstitutional, 

 steam ferryboats were again put on the Hoboken Ferry. 

 Made in the Museum. Cat. No. 160,402 U.S.N.M. 



