CHAPTER X. PHYSICAL AND HISTORICAL GEOGRAPHY. Physical Features of Greece—Impression produced by them on Aristotle— Physical Geographers—Agatharchides—His Account of the Aethiopian Gold-mines—Similar Description in the Book of Job—Eudoxus of Cyzicus —Artemidorus—Posidonius—His Travels—His Varied Interests—Error about the Circumference of the Earth—Tides—Observations of Aristotle, of Pytheas, and of Posidonius—Winds—Aristotle's Scheme—Timosthenes' Scheme—Popular Scheme—* Temple of the Winds' at Athens—Period- ical Winds—Rivers—Their Sources, Underground Courses, Power of Erosion, Deposit of Alluvium, Tidal Waves—Earthquakes and Volcanic Action—Views of Anaximenes, Anaxagoras, and Aristotle—Earthquakes relieved by Volcanoes—Observations of Posidonius—Flora—Theophras- tus' History of Plants—The Descriptio Montis Pelii—Fauna—Anthropo- logical Notices—Agatharchides on the Ichthyophagi and Aethiopians— Posidonius on the Iberians and Gauls—Historical Geography as found in Aristotle—His Restricted Views—Ephorus the Forerunner of Polybius— Geographical Section of his History—His Advanced Criticisms—Polybius circ. 210-128 B.C.—How affected by the Circumstances of his Age—His Travels in Western Europe—His Opinion of the Importance of Travel- Interest in Physical Geography—His Application of Geography to History —Descriptions of Countries—Cisalpine Gaul—Media—Descriptions of Cities—Sinope—Agrigentum—New Carthage—General Remarks. IN the first chapter of the present work it has been observed . that Greece was in many ways a suggestive country Features of to its inhabitants on the subject of physical geo- Greece* graphy. Its remarkable isthmuses, such as that of Corinth, which was familiar to every Greek, and those of the peninsulas of Athos and Pallene in Chalcidice, and the still more peculiar belt of sand by which the island of Leucadia was joined to the neighbouring continent; the narrow inlets, which penetrated at many points into the land, and the strange currents which were produced within them by the influx and efflux of the sea; the numerous islands, which were either grouped in clusters or scattered over the surface of the water:—these, and many other features by which its area was diversified, furnished as it were an