Wetzstein, J.G. Reisebericht uber Hanran und die Trachonen. Berlin, 1860. 8vo. Wild, Albert. Die Niederlande. Leipzig, 1862. 2 vols. 8vo. Wilhelm, Gustav. Der Boden und das Wasser. Wien, 1861. 8vo. Williams, Dr. History of Vermont. 2 vols. 8vo. Wittwer, W.C. Die Physikalische Geographie. Leipzig, 1855. 8vo. Young, Arthur. Voyages en France, pendant les annees 1787, 1788, 1789, procedee d'une introduction par Lavergne. Paris, 1860. 2 vols. 12mo. ----Voyages en Italie et en Espagne, pendant les annees 1787, 1789. Paris, 1860. 1 vol. 12mo. TABLE OF CONTENTS CHAPTER I. INTRODUCTORY Natural Advantages of the Territory of the Roman Empire--Physical Decay of that Territory--Causes of the Decay--Reaction of Man on Nature--Observation of Nature--Uncertainty of Our Historical Knowledge of Ancient Climates--Uncertainty of Modern Meteorology--Stability of Nature--Formation of Bogs--Natural Conditions Favorable to Geographical Change--Destructiveness of Man--Human and Brute Action Compared--Limits of Human Power--Importance of Physical Conservation and Restoration--Uncertainty as to Effects of Human Action CHAPTER II. TRANSFER, MODIFICATION, AND EXTIRPATION OF VEGETABLE AND OF ANIMAL SPECIES. Modern Geography takes Account of Organic Life--Geographical Importance of Plants--Origin of Domestic Vegetables--Transfer of Vegetable Life--Objects of Modern Commerce--Foreign Plants, how Introduced--Vegetable Power of Accommodation--Agricultural Products of the United States--Useful American Plants Grown in Europe--Extirpation of Vegetables--Animal Life as a Geological and Geographical Agency--Origin and Transfer of Domestic Quadrupeds--Extirpation of Wild Quadrupeds--Large Marine Animals Relatively Unimportant in Geography--Introduction and Breeding of Fish--Destruction of Fish--Geographical Importance of Birds--Introduction of Birds--Destruction of Birds--Utility and Destruction of Reptiles--Utility of Insects and Worms--Injury to the Forest by Insects--Introduction of Insects--Destruction of Insects--Minute Organisms CHAPTER III. THE WOODS.