306 



REPORT — 1841. 



Table (continued). 



"Hecla" Tender and Twelve Carriages. 



Liverpool to Birmingham, 95 miles, 3654 lbs. of coke, 2108 gallons of water. 

 Birmingham to Liverpool, 95 miles, 3406 lbs. of coke, 1873 gallons of water. 



190 miles, 7060 lbs. of coke, 3981 gallons of water. 



Coke per mile 37-16 lbs. 



Water per mile 37-16 imperial gallons. 



One pound of coke evaporates 5-63 lbs. of water. 



It is to be observed that the previous statement comprises the entire quan- 

 tity of coke supplied to the engine, both for getting up the steam in the morn- 

 ing, and for work during the day ; whereas, on the other hand, the water re- 

 corded was that actually used during the tv;o journeys. 



The duty of 1 lb. of coke is greater than is here assigned. 



