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

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

Remarks on the Final Causes of the Sexuality of Plants, with Particular Reference to Mr. Darwin's Work on the Origin of Species: Being the Substance of a Paper Read Before the Natural History Section of the British Association for the Advancement of