120 STATISTICS. 



horses to draw along a canal, at the rate of 4 miles an 

 hour, the same load that one horse could draw at the 

 rate of 2 miles an hour. 



At the speed of 2-ths miles an hour, the rail road 

 and canal, with the same moving power, are nearly 

 equal : but at 3 miles per hour the rail road has the 

 advantage as 11 to 10, and at 9 miles an hour as 

 8 to 1. 



An eight horse-power engine dragged the following 

 weight on a rail road at the rate of 7 miles per hour : 

 viz. 



Tons. Cwt 



Coals 33 13 



Weight of the waggons 15 2 

 Ditto of the engine, &c. 9 



57 15 



Turnpike Roads. 



In 1 823 the total extent of turnpike roads in Great 

 Britain amounted to 24,53 1 miles ; the annual income 

 to 1,214,716/. ; the debt to 5,200,000. 



Caledonian Canal. 



Up to the 31st Dec. 1822, 950,000^. had been 

 expended on this canal. 



This canal exclusive of locks is 21 1 miles long, has 

 about 15, but is intended to have 20 feet depth of 

 water, and has 22 locks. Its summit level is 93 

 above that of the sea. 



Forth and Clyde Canal. 



The estimate for making the Forth and Clyde 

 canal was only 100,000/. ; but it required no less a 

 sum than 421,525/., of actual outlaid money to 

 complete it, although two-thirds of it were nearly 



