The intrusion of art in this romantic valley, where nature has been so lavish of her beauties, is much to be lamented: a canal, for the purpose of conveying the iron from the Myther Works to Cardiff, renders it a place of frequent business and confusion; a place originally so well adapted to retirement and reflection. MYTHER TIDVIL, is a most miserable dirty place; the soil and the inhabitants both partook of a dark dingy colour: the women destitute of shoes and stockings, the men and boys the slaves of Vulcan. The Iron-works, under the direction of Mr. Cramshaw, are the largest in the kingdom; not less than one thousand hands are employed by this gentleman, who allows the person who inspects the machinery one-eighth of the profits, to keep them in repair. Four large blast furnaces, with a number of a smaller size, besides a row of forges, are continually in use. An enormous wheel has lately been constructed, with several inferior ones, acting in contrary directions, which pumps the air into a large space, from whence it is distributed, through various tubes, to each separate furnace. This wheel is fifty feet one inch in diameter, and six feet eight inches in width. The whole weight rests on gudgeons, of one hundred tons. The gudgeons of all the wheels, and of such parts of the machine where there is any friction, have water continually running over them, to prevent their taking fire. It is the particular office of one man to grease every part of the machine, whilst in motion; to accomplish which, he is frequently obliged to ride on an iron bar, similar to the lever of a pump when in motion, a considerable way from the ground. The whole of this machinery is worked by water, not more than a foot deep, which is conveyed by a long spout to the top of the wheel, where it discharges itself. The ore, flux, {23} and coals, which they use to promote the fusion of the ore, are all found on the spot. The ore, previous to its being thrown into the furnace, is burnt in a common lime-pit, the goodness of it afterwards proved, by its adhesion to the tongue; the coal is all charked, and continually put in the furnace, with certain proportions of ore. From the pigs, the iron is rolled into flat plates by a cylinder; this is performed with the greatest dispatch. The gaunt figures of the workmen excite both pity and terror, and the sallow countenances and miserable air of the people, prove it is a labour very prejudicial to their health. From hence we travelled the road to PONT NEATH VECHAN,