lis MR. IT. FAIRBAIRN ON THE LOCOMOTIVE ENGINE. Sx. 



maximum state of perfection which is calculated to ensure 

 the conditions and meet all the requirements of surmounting 

 steep gradients. These improvements are yet before us, 

 and the object of the investigations which I have ventured 

 to submit, will be fully attained if they lead to further en- 

 quiry into the conditions calculated to increase the powers 

 and extend the resources of our locomotive traffic. 



