gratified by the progressive spirit of the board of directors and their 

 confidence in his judgment on the capabilities of the Sellers grade- 

 climbing locomotive. "I cheerfully encounter the doubts of the un- 

 believing in view of the prospective credit that must attach to the 

 success of the measure." ^-^ 



A contract was made with Niles & Company to build two loco- 

 motives. They were to be o-8-o's weighing 30 tons each, more 

 than twice the size of the little engines built for the Panama. The 

 following table lists the pertinent dimensions ^-^ (except in the two 

 respects noted, the machines were identical) : 



Pairs of drivers 4 



Diameter of drivers 44 inches 



Diameter of cylinders 1 6 inches 



Length of stroke 20 inches 



Weight of engine with fuel and water 60,592 pounds 



Weight on drivers with fuel and 60,592 pounds 



water 



Weight of tender with fuel and water 29,680 pounds 



Grate area 3,164 square inches 



Length of combustion chamber 44 inches (60 inches 



on the second engine) 



Number of flues 1 44 



Length of flues 1 38 inches (122 inches 



on the second engine) 



Outside diameter of flues 2 inches 



Little else of a mechanical nature is known of the engines, for no 

 drawings or other illustrations have survived. The original draw- 

 ings were retained by Sellers as late as 1 893, but their ultimate fate, 

 as with the drawings of the Panama engines, is unknown. As 

 recalled by Alexander Mitchell, the well-known locomotive de- 

 signer of the Lehigh Valley Railroad, the adhesion machinery 



126 Railroad Record (March 9, 1854), vol. 2, pp. 22-23. 



126 Data supplied by W. E. Lehr, superintendent of motive power, Lehigh Valley 

 Railroad, from its motive power record books. The dimensions listed are those of 

 the machines when in service on the Beaver Meadow Railroad. 



86 



