15/36 It is picked out from amongst ordinary stones partly because of its shape, and partly because of rough and much-worn chippings that suggest the hand of art or of nature, according to your turn of mind. Take one by itself, explains Mr.Harrison, and you will be sure to rank it as ordinary road-metal. But take a series together, and then, he urges, the sight of the same forms over and over again will persuade you in the end that human design, not aimless chance, has been at work here. Sir Joseph Prestwich has tried to work the problem out. Now-a-days Kent and Sussex run eastwards in five more or less parallel ridges, not far short of 1,000 feet high, with deep valleys between. |