A Description Of Active And Extinct Volcanos: With Remarks On Their Origin, Their Chemical Phaenomena, And The Character Of Their Products, As Determined By The Condition Of The Earth During The Period Of Their Formation. Being The Substance Of Some

Essay on the Trees and Shrubs of the Ancients: Being the Substance of Four Lectures Delivered Before the University of Oxford, Intended to Be Supplementary to Those on Roman Husbandry, Already Published

An Introduction to the Atomic Theory

A Description of Active and Extinct Volcanos, of Earthquakes, and of Thermal Springs: With Remarks on the Causes of These Phµnomena, the Character of Their Respective Products, and Their Influence on the Past and Present Condition of the Globe

Journal of a Tour Through the United States, and in Canada, Made During the Years 1837-38