Samuel Kneeland (1821-88), educated at Harvard and in Paris as a doctor, served as an army surgeon during the American Civil War. After the war, he returned to lecturing on physiology, and expanded his academic interests to zoology and to natural history in general. His expedition to Iceland was fuelled by a fascination with volcanoes, volcanic islands and the flora and fauna that abounded on them, but Kneeland was as much a cultural and historical...