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.
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 sm...
