Similar wagon-roads were early laid down in the coal districts of Wales, Cumberland, and Scotland. At the time of the Scotch rebellion in 1745, a tram-road existed between the Tranent coal-pits and the small harbor of Cockenzie, in East Lothian; and a portion of the line was selected by General Cope as a position for his cannon at the battle of Prestonpans. In these rude wooden tracks we find the germ of the modern railroad. Improvements were gradually made in them. Thus, at some collieries, thin plates of iron were nailed upon their upper surface, for the purpose of protecting the parts most exposed to friction. Cast-iron rails were also tried, the wooden rails having been found liable to rot. The first iron rails are supposed to have been laid down at Whitehaven as early as 1738. This cast-iron road was denominated a "plate-way," from the plate-like form in which the rails were cast. In 1767, as appears from the books of the Coalbrookdale Iron Works, in Shropshire, five or six tons of rails were cast, as an experiment, on the suggestion of Mr. Reynolds, one of the partners; and they were shortly after laid down to form a road. [Illustration: (Flange-rail)] In 1776, a cast-iron tram-way, nailed to wooden sleepers, was laid down at the Duke of Norfolk's colliery near Sheffield. The person who designed and constructed this coal line was Mr. John Curr, whose son has erroneously claimed for him the invention of the cast-iron railway. He certainly adopted it early, and thereby met the fate of men before their age; for his plan was opposed by the laboring people of the colliery, who got up a riot, in which they tore up the road and burned the coal-staith, while Mr. Curr fled into a neighboring wood for concealment, and lay there _perdu_ for three days and nights, to escape the fury of the populace.[6] The plates of these early tram-ways had a ledge cast on their outer edge to guide the wheel along the road, after the manner shown in the preceding cut. In 1789, Mr. William Jessop constructed a railway at Loughborough, in Leicestershire, and there introduced the cast-iron edge-rail, with flanches cast upon the tire of the wagon-wheels to keep them on the track, instead of having the margin or flanch cast upon the rail itself; and this plan was shortly after adopted in other places. In 1800, Mr. Benjamin Outram, of Little Eaton, Derbyshire (father of the distinguished General Outram), used stone props instead of timber for supporting the ends or joinings of the rails. Thus the use of railroads, in various forms, gradually extended, until they became generally adopted in the mining districts.