Wales is a row of hills, rising between the Irish Sea on the west and the English plains on the east. If you come from the west along the sea, or if you cross the Severn or the Dee from the east, you will see that Wales is a country all by itself. It rises grandly and proudly. If you are a stranger, you will think of it as "Wales"-a strange country; if you are Welsh, you will think of it as "Cymru"-a land of brothers.The geologist will tell you how...