122 STATISTICS OF VARIOUS RAILROADS. 



case, or tanks; the weight, &c., of these being given, it becomes a simple matter of calculating 

 the extra Bright to be drawn in any given case. 



A partial remedy would be to condense the exhaust steam. This has been clone in Scotland 

 to a certain extent. 



In ascending heavy grades water is required oftener than usual. Thus on the heavy grades of 

 the Baltimore and Ohio road (116 feet) water is taken every eight miles; on the Western Massa 

 chusetts roul the water stations are 10 to 12 miles apart on the heavy grades. It is to be 

 remarked that on this road the average consumption of wood is not greater than on others of less 



heavy grades. 



When the track is obstructed by snow it becomes necessary for the passenger trains to take in 

 wood and water oftener than usual, using about double the ordinary amount. 



STATISTICS OF VARIOUS RAILROADS. 



Boston and Worcester road. 



Length, 45 miles ; maximum grade, 37 J feet; minimum radius, 541 feet. This distance is 

 accomplished, by trains of four to six passenger cars, in 1^ hour; consuming 1^ cord of wood, 

 and evaporating 1,200 gallons of water; water is taken once on the road. 



Freight trains with maximum loads take water every 12 to 15 miles. 



An engine has run, with a train, from Boston to Worcester and back (90 miles) with one cord 

 of wood. 



Boston and Providence road. 



Length, 43 miles ; maximum grade, 37 feet. 



Trains of four to six passenger cars run at a velocity of 25 miles an hour, maintaining the 

 same up the maximum grade ; they consume 3,500 pounds of wood, and evaporate 10,000 pounds 

 of water ; take water once on the road, but no wood. 



Freight trains as on Worcester road. 



In severe snow-storms passenger trains drawn by two or more engines take water every 12 to 

 15 miles. 



Pennsylvania Central road. 



Passenger trains wood and water at from 20 to 30 miles ; freight trains at an average of 10 

 miles. 



Boston and Maine road. 



Trains of four to seven cars at velocities from 24 to 34 miles per hour ; take water every 20 

 miles. 



Boston and Lowell road. 



Length, 26 miles. 



Passenger trains pass over this distance in one hour ; take neither wood nor water ; evaporate 

 1,100 to 1,200 gallons, and consume three fourths of a cord of pine. 



Freight trains carrying maximum loads due the engine take water once on the road, and travel 

 with velocity of 12 miles per hour. 



Burlington to Rutland. 



Distance, 67 miles. 



Passenger trains take wood and water once; freight trains take wood and water four times. 



Rutland to Bellows Falls. 

 Pistance, 53 miles ; maximum grades, 60 feet. 



