Volcanoes have fascinated--and terrified--us for ages. They have destroyed cities and ended civilizations. This exemplary new book explores the early scientific study of volcanoes, as well as the life of Thomas Jaggar, the man who pioneered the field. Educated at Harvard, Jaggar went to the Caribbean after Mount Pel e exploded in 1902, killing more than 26,000 people. Witnessing the destruction and learning about the horrible deaths these...