Near Cornwood is Fardell, once a manor of the Raleighs; and though Sir Walter was not born here he undoubtedly paid the spot many visits. The place is also interesting because of a stone discovered here, bearing Ogham inscriptions supposed to prove the extent of the Irish invasion somewhere about the sixth century, when Devon and Cornwall were overrun by saints and chieftains from the green island. There are a number of attractive manor houses in this part of the moorland's fringe, together with some fine heights, such as Pen Beacon and Shell Tor, rising to about 1500 feet. But there is no particular charm in the china-clay works of Lee Moor--an industry which may be studied on a larger scale in the St. Austell district of Cornwall. China-clay, or kaolin, is a detritus of granite, much used for pottery and in the preparation of calicoes; partly also for the supposed white sugar of confectionery and in cheap adulterated flours. The neighbourhoods of its workings are as white as those of coal are black, and in this respect china-clay must be given the preference; but neither tends to beautify a district. [Illustration: A MOORLAND TRACK, THE DEVIL'S BRIDGE] None of the lovely rivers already mentioned water a town of any great importance; but when we come to the Plym it is different. The Plym is not the most beautiful of Dartmoor streams, but it has given its name to Plymouth, and Plymouth has imposed its own title on the three towns which united form the supreme naval and industrial centre of the west country. Other western seaports have decayed rather than advanced--they have deteriorated at least in their relative importance; but Plymouth has advanced and is still advancing. In no sense does it belong to Dartmoor, but the Plym and the Tavy, whose waters go to swell Plymouth Sound, are both genuine children of the moorland. The Plym, rising not far from the Yealm, makes its way to its junction with the Meavy through a grand ravine, overshadowed by the Dewerstone. Before reaching the Dewerstone, however, the river passes under the Cadover (or Cadaford) Bridge, and from this circumstance there has been some dispute as to whether the true name of the stream should not be the Cad. Carrington gave it this name, but he cannot be taken as an authority; and it is probable that the _cad_ in Cadover is simply a corruption of the Celtic word _coed_, or wood, and has nothing to do with the river at all. From Cadover to Shaugh Bridge are some wonderfully beautiful scenes, banks strewn with granite fragments amidst tangled undergrowth. The Dewerstone towering above is appropriately the haunt of a demon huntsman of the moors, who careers abroad on stormy nights with his fierce-eyed baying wish-hounds.