The Thames Valley Catastrophe by Grant Allen
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Two bicyclists, one a Londoner, the other an American geologist named Ward, out for a pleasant bicycle trip in the idyllic Thames valley, meet at a small village inn on the west bank of the Thames. Their parlor chat turns to the subjects of mountains and volcanic eruptions, and the difference between small vent-hole eruptions and large fissure eruptions. The Londoner speaks:
