Taking up a plan suggested by the pioneer volcanologist George Poulett Scrope, Judd explains volcanic action for the general reader. He describes eruptions and their products, how ash and lava are distributed, the inner structure of volcanic mountains, the cones, craters and calderas they build, the world distribution of volcanoes and what they reveal about the interior of the earth.
A classic of Victorian popular geology, still a clear account of the basics. Download the free EPUB.