There followed a traverse of the Derbyshire Dome, over bleak heather and bilberry moors and into the deep valleys of the Manifold and Dove. We stopped at Wetton Mill for lunch, and were able to see where the Manifold river disappears into its own bed and continues underground. From here, for some distance downstream, the bed is dry except in flood times. There must be many mysterious caverns and pipes that the water flows through before reappearing at the surface some way downstream. Copper workings at Ecton (reached by a road that follows an old railway track and includes a short tunnel) were examined, and a few pieces of rock containing copper ore were found by some lucky members. Later in the afternoon, we reached Magpie Mine near Sheldon. This old lead mine has been taken in hand by the Peak District Mines Historical Society, and is being preserved from further decay. Here we were met by a guide from the Society, and were treated to some amusing anecdotes and a lot of sound history about the mines and the appalling conditions under which the miners worked. The buildings are but shells (See illustration on page 17), almost all the machinery is gone; some of the old shafts are being deliberately filled with rubbish, but two are open. After the rather flimsy covers where removed, some of the party ventured to lie flat on their tummies and look down nearly four hundred feet of nothingness into the pool of dark water at the bottom of the shaft. The spoil heaps were combed for fragments of Galena (Lead Sulphide) and most people found a little to add to their Derbyshire Mineral Collection. We were told how, when the mine shaft had been sunk more than 400 ft., it became uneconomical to pump the water to the surface, and a drainage tunnel or sough was driven from the banks above the River Wye a distance of one mile from the bottom of the shaft, It took seven years to make the sough, and, by the time it was completed, the mine shaft had been deepened by a further 200 ft. We Page 22