Page:Cornwall; Cambridge county geographies.djvu/26

 10 CORNWALL in Brittany. But if there has been subsidence, there has also been an elevation of the land, as is shown by the raised beaches that can be traced along the coast. In the south are found flint pebbles in these raised beaches, show- ing that the wash at one period was not as now from west to east, but the reverse. It was from these flint pebbles in the elevated beaches that prehistoric man in Cornwall obtained the material for the fabrication of his tools and weapons. The elevation of the land, which dried up the channel between the Land's End and the mainland, preceded the depression which sunk the now submerged forests. To the north of the great granite boss that forms the Bodmin moors a ridge of cold moors rises, setting its back against the Atlantic and feeding the rivers that flow south with the rain that pours over it. Very little can be grown on these heights : they produce a little barley, but are mainly covered with rushes, coarse grass, and furze bushes. No considerable heights are reached till we come to Carnmarth and Cam Brea, each only 700 ft. above the sea. Then there is no distinct height till we reach Godol- phin and Tregonning hills of 560 ft. and 600 ft. Towards Land's End there are greater heights 700 ft. and a little over, but this is naught compared with Brown Willy, 1368, and Kilmar, 1297, in the east. But it must be understood that grand mountain, or even fine hill scenery is not to be met with in western Cornwall. Its glory is in its magnificent coast-line ; and its beauty is to be found in its lovely valleys and coombes. The general features of a country depend on its