1840.] On Low Steam Power to Vessels, instead of Sails, 245 



Sundries 40 



Expences per annum £2610 



Do. for 4 months and 5 days 905 £ 



Coal for 95 days, at 8-lbs. per horse power per hour, 2| tons 



per day at 7s 83 



Total expence for 640 tons 11,000 miles 988 £ 



s. d. 



Do. do. per ton , £l 11 6 



Expence by sailing vessel 900 tons ISaO 



Do. per ton £l 10 0 



That is the expence of steaming would exceed that of sailing by Is. 6d. 

 per ton carried, but 25 days would be saved in the voyages. 



PROFITS ON SAILING. 

 Supposing the freight to be 2£ per ton. £ 

 Profit on 900 tons at 10s. (in 5 months) 450 



Proportional profit in a year , , 1080 



Which upon a capital of 9800£ is ,11 per cent. 



PROFITS ON STEAMING. £ 

 640 tons at 8s. 6d. (in 4 months 5 days) 272 



Proportional profit per annum 782 



Which upon 7780£ is 10 per cent. 



That is the profits upon the voj^age by the sailing vessel would be II 

 per cent, and in the steamer only 10 per cent. 



In the above estimate, the coal carried by the steamer is thus reck- 

 oned Tons 



Total coals conveyed in sailing vessel 900 



Deduct coals consumed 240 tons, engine 20 tons 260 



Coal conveyed by steamer, 



640 tons 



