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The blocks are not waterworn, their angles being only a little blunted; they vary in size from one or two feet in diameter to ten, or even more than twenty times as much. They are not thrown together into irregular piles, but are spread out into level sheets or great streams.
The cliff edge was rounding back. Every upward hitch was easier than the one before. Now he was scrambling up on toes and knees; now he could rise to his feet. The line led across a waterworn ledge and downward. Ashton peered over, and saw the senseless body of Blake wedged against the other side of the ledge. About it, close below the arms, the line was knotted fast.
The great canyon spread out again, once she had passed the waterworn Gorge, and peak after peak rose up to right and left where yawning side canyons led in. But all were set on edge and reared up to dizzying heights; and along their scarred flanks there lay huge slides of shaley rock, ready to slip at the touch of a hand.
"An ill outlook for the man we're seeking," the captain mused. "Dead if he's anywhere on this highland," declared Trendon. "Let's look at his flag-pole." He examined the staff. "Came from the beach," he pronounced. "Waterworn. H'm! Maybe he ain't so dead, either." "I don't quite follow you, Dr. Trendon." "Why, I guess our man has figured this thing all out.
After visiting the island it was easy for us to trace the same terrace formation on the coast; in one place we found waterworn stones over 100 feet above sea-level. Nearly all these stones are erratic and, unlike ordinary beach pebbles, the under sides which lie buried have remained angular.
This process is both tedious and unhealthy, and of course can only be carried out with very dry surface dirt. The stuff in which the gold occurred at Mount Brown was composed of broken slate with a few angular fragments of quartz. Yet, strange to say, the gold was invariably waterworn in appearance.
Again, opposite my fire, but considerably to the right, a deep, waterworn drain came down from the table land into the lagoon; and between this drain and the house stood a little, old, sooty-looking straw-stack, worn away with the Duke-of-Argyle friction of cattle to the similitude of a monstrous, black-topped mushroom.
Islands, like Graham's Island, may have sometimes raised their craters for various periods above the water, and by the waste of such islands some of the ashy matter became waterworn, whence the ashy conglomerate. The Laurentian rocks in Canada, especially in Ottawa and Argenteuil, are the oldest intrusive masses yet known.
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