ON RAILWAY CONSTANTS. 



July 12th, 1839. 



Eight Second Class Carriages. 



tons. cwts. qrs. 

 Weight of Carriages and Load . . 40 

 Six Passengers 9 



227 



Gross weight ... 40 9 

 From initial velocity 20"07 miles per hour, down Madeley Plane. 



q2 



