RAILWAYS FOR FARMS AND ESTATE IMPROVEMENTS. 145 



and as nothing seemed to come near its limits of climbing, it was headed towards 

 Cockburn Street, and rolled quietly up that steep and crooked street, some parts of 

 which have gradients about 1 in 8 or 9. The French Government have instructed 

 M. Leon Rascol, Ingenieur des Fonts et Chamskes, to examine and report on the 

 working of Mr Thomson's road-steamer. One steamer is in course of construction 

 for transporting coal over a hilly road, nine miles long, in Derbyshire. 



It will be necessary to substitute coke instead of coal, the smoke from which is 

 offensive when the road-steamers are passing through towns. 



These engines of ten-horse power cost in Edinburgh 680 ; they 

 weigh eight and a half tons, and can take a load of fifteen tons up a 

 gradient of 1 in 12, and on level ground thirty tons. 



