BOOK I 



ruption of straits. Junction of islands with main- 

 land. Total inundation. Shrinkage of land areas. 

 Cities engulfed by sea. (xcv) Air-holes. (xcvi) 

 Continuous earth-tremors. Islands in constant 

 agitation. (xcvii) Places where rain does not fall. 

 (xcviii) Collection of earth marvels. (xcix f.) Rise 

 and fall of tides — reason for. Where do irregular 

 tides occur? (ci-cv) Marvels of the sea : influence 

 of the moon on earth and sea ; of the sun ; why is the 

 sea salt ? where is it deepest ? (cvi) Remarkable 

 properties of springs and rivers. (cvii-cx) Combined 

 marvels of fire and water : mineral pitch ; naphtha ; 

 regions constantly glowing. (cxi) Marvels of fire 

 alone. (cxii) Dimensions of entire earth. (cxiii) 

 Harmonic principle of the world. — Total : 417 facts, 

 investigations and observations. 



Authorities : Marcus Varro, Sulpicius Gallus, 

 the Emperor Titus Caesar, Quintus Tubero, TuUius 

 Tiro, Lucius Piso, Titus Livy, Cornehus Nepos, 

 Sebosus, CaeUus Antipater, Fabianus, Antias, Muci- 

 anus, Caecina On the Tuscan System, Tarquitius 

 ditto, JuUus Aquila ditto, Sergius PauUus. Foreign 

 authorities ; the Pythagorean viTiters, Hipparchus, 

 Timaeus, Sosigenes, Petosiris, Nechepsus, Posidonius, 

 Anaximander, Epigenes, Eudoxus, Democritus, Crito- 

 demus, ThrasyUus, Serapion On Sun-dials, EucUd, 

 Coeranus the philosopher, Dicaearchus, Archimedes, 

 Onesicritus, Eratosthenes, Pytheas, Herodotus, Aris- 

 totle, Ctesias, Artemidorus of Ephesus, Isidore 

 of Charax, Theopompus. 



Book III. Contents : sites, races, seas, towns, 

 harbours, mountains, rivers, dimensions, present and 

 past populations of (iii) Baetica, (iv) North-east 

 Spain, (v) Province of Narbonne, (vi-x) Italy to the 



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