From the character of the slags, the comparatively complete state of the remains, and from the tuyere and other things having been discovered, it seems probable that the Fasagh works, whilst belonging to the ancient class of ironworks, were amongst the most recent of that class; and Mr Macadam thinks it possible that Sir George Hay may have commenced his operations at this place in continuation, no doubt, of older ironworks. 3. FURNACE, LETTEREWE. The remains of the ironworks at the hamlet of Furnace, a mile south-east of Letterewe, are perhaps the most generally interesting in Gairloch, as being especially identified with Sir George Hay. The furnace which gives its name to the hamlet is on the north-west bank of the "Furnace burn," about one hundred yards from its confluence with Loch Maree. The remains of the furnace are tolerably complete, and a hole in its lower part looks as if it had been the aperture for the blast. On the banks of the burn are masses of sandstone, which formed part of the furnace. Some fragments of vitrified bricks are also to be seen. In the soil of the adjoining field, and in its fence walls, are quantities of the ores 2 and 3. In places the soil is quite red with fragments of hematite. In other places it is stained black with charcoal burnings, and many fragments of charcoal are to be found. No doubt the water-power of the burn was utilised, and Loch Maree afforded an easy means of transport of imported ores from Poolewe, where they were landed. The slags found about this furnace are of both classes. May we not conclude from this fact, that Sir George Hay commenced the manufacture of iron on the old methods anciently in vogue, and that it was at Letterewe that he began the improved processes which were afterwards carried to still greater perfection at the Red Smiddy? This furnace belongs of course to the historic class. 4. TALLADALE. A strong local tradition places the Talladale furnace on the bank of a small burn about one hundred and fifty yards south-east of the Talladale river; it stood in the corner of the field nearest to, and to the west of, the road. They say that when this field was reclaimed and trenched, large quantities of slag were turned up, and were buried in the land and in drains. The few specimens of slag found on the surface in 1883 are of both kinds. Some small fragments of ore discovered are No. 3. It seems pretty certain, therefore, that the Talladale furnace was carried on by Sir George Hay, and that it belongs to the historic class of ironworks. 5. GARAVAIG, ON SLATADALE FARM.