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17 · Ocean and the inner sea
I.40.1.17 · Wachsmuth pp. 259
The sea outside the inhabited world is called both Atlantic and Ocean, and flows around us. In the west it opens inward through a narrow mouth, the so-called Pillars of Heracles, and enters the inner sea as though entering a harbor. Gradually widening, it spreads out and embraces great gulfs connected with one another.1003
18 · The Mediterranean basins
I.40.1.18 · Wachsmuth pp. 259-260
First, on the right as one sails in through the Pillars of Heracles, it is said to form two gulfs called the Syrtes, one named the Great and the other the Small. On the other side, where the gulfs are shaped differently, it forms three seas: the Sardinian, the so-called Gallic, and the Adriatic. Next, lying across these, is the Sicilian sea; after it, the Cretan. ⟨And⟩ adjoining that sea are the Egyptian, Pamphylian, and Syrian on one side, and the Aegean and Myrtoan on the other.1004
19 · Pontus and Maeotis
I.40.1.19 · Wachsmuth pp. 260
Opposite the seas just named extends Pontus, [but] divided into very many parts. Its innermost part is called Maeotis, while its outer part toward the Hellespont connects at its mouth with the sea called Propontis.1005
20 · Eastern inlets of Ocean
I.40.1.20 · Wachsmuth pp. 260
Again, toward the rising of the sun, Ocean flows inward, opening the Indian and Persian gulfs and enclosing the expanse known as the Erythraean Sea. At another arm it narrows, passes into a long neck, and widens again, marking out the Hyrcanian and Caspian Sea. The region beyond this extends far inland, beyond Lake Maeotis.1006
21 · Ocean around the north and west
I.40.1.21 · Wachsmuth pp. 260
Then, little by little, beyond the Scythians and the Celtic country, it closes around the inhabited world toward the gulf called Gallic and the Pillars of Heracles already mentioned, outside which Ocean flows around the land.
22 · Islands beyond the continents
I.40.1.22 · Wachsmuth pp. 260-261
In Ocean there are great islands: [and] the two called British, [and] Albion and Ierne, larger than those previously described and lying beyond the Celts. Smaller than these are Taprobane, beyond the Indians and at an angle to the inhabited world, and the island called Phobea [Euboea], situated by the Arabian Gulf.1007 Many other small islands around the British islands and Iberia form a circular crown about this inhabited world, which we have called an island.
23 · Dimensions and divisions
I.40.1.23 · Wachsmuth pp. 261
Writers skilled in geography say that its breadth, where the mainland extends deepest, is a little short of forty thousand stades, and its length approximately seventy thousand. It is divided into Europe, Asia, and Libya.1008
24 · Europe and Asia
I.40.1.24 · Wachsmuth pp. 261
Europe is the region bounded round by the Pillars of Heracles, the recesses of Pontus, and the [and] Hyrcanian Sea, from which a very narrow isthmus extends to Pontus. Some give the river Tanais instead of the isthmus. Asia is the region from the isthmus just mentioned, between Pontus and the Hyrcanian Sea, to the other isthmus lying between the Arabian Gulf and the inner sea, enclosed by that sea and the surrounding Ocean. Some set its boundary from the Tanais to the Nile.1009
25 · Libya and Egypt
I.40.1.25 · Wachsmuth pp. 261-262
Libya is the region from the Arabian isthmus to the Pillars of Heracles; others say from the Nile to those pillars. Egypt, enclosed by the mouths of the Nile, is assigned by some to Asia and by others to Libya. Some place the islands in a separate category, while others [always] assign them in each case to the neighboring divisions.1010 Such, approximately, is our account of the nature and position of land and sea which we customarily call the inhabited world.
26 · Two exhalations
I.40.1.26 · Wachsmuth pp. 262
[Chapter 4] Let us now discuss the most noteworthy occurrences within and above it, summarizing only the essentials. Two exhalations continually rise from it into the air above us, composed of fine particles and entirely invisible; they are observed rising from places along the shores, from rivers, and from streams.1011 One is dry and smoky, flowing from the earth; the other is moist and vaporous, [and] exhaled from the liquid element.
27 · What each exhalation produces
I.40.1.27 · Wachsmuth pp. 262
From the moist exhalation arise mists, dews, forms of frost, clouds, rains, snows, and hail; from the dry one arise winds and differing blasts, thunder, lightning, fiery storm blasts, thunderbolts, and the other phenomena naturally akin to these.1012
28 · Mist and clear air
I.40.1.28 · Wachsmuth pp. 262
Mist is a vaporous exhalation that produces no water, thicker than air but thinner than cloud. It arises either from a cloud’s first formation or from its remnant. What is called clear weather is its opposite, and truly is so: it is nothing other than air free from cloud and mist.1013
29 · Dew, ice, and frost
I.40.1.29 · Wachsmuth pp. 262-263
Dew is moisture descending from a clear sky in a fine condensation; ice is a mass of water frozen under a clear sky; frost is … half-frozen dew.1014
30 · Cloud and rain
I.40.1.30 · Wachsmuth pp. 263
cloud is a gathered vaporous ⟨mass⟩ capable of producing water. Rain arises when a thoroughly thickened cloud is squeezed out, and varies with the compression of the cloud. Gentle compression scatters fine drops; violent compression scatters larger ones. What we call a downpour consists of larger, continuous masses of rain descending to earth.1015
31 · Snow
I.40.1.31 · Wachsmuth pp. 263
Snow arises from the breaking up of condensed clouds, checked before their change into water. The breaking produces its frothy texture and whiteness; the freezing of the moisture within it, which has not yet flowed out or become diffuse, produces its coldness. When it falls violently and in a mass, it is called a snowstorm.
32 · Hail
I.40.1.32 · Wachsmuth pp. 263
Hail arises when snow is compacted and gains weight from its compression, causing a faster descent. According to the size of the fragments that break off, the masses are larger and their movements more violent. These phenomena, then, naturally arise from the moist exhalation.1016
33 · Wind and living breath
I.40.1.33 · Wachsmuth pp. 263
Wind arises from the dry exhalation when cold drives it into a flow. It is nothing other than a great mass of flowing air, which is also called pneuma. In another sense, pneuma also names the animate and generative substance in plants and animals that pervades all things; we need not discuss that now.1017
34 · Local winds and squalls
I.40.1.34 · Wachsmuth pp. 263-264
We call the blasts moving in the air winds, and the breaths coming from water breezes. Winds flowing from moist earth are called land winds; those rushing out of gulfs, gulf winds. Those from rivers and lakes are analogous to these. Winds arising from a rupture and dissolving the dense mass into themselves are called cloud squalls; when accompanied by a mass of water bursting forth, they are called rain squalls.1018
35 · Four principal directions
I.40.1.35 · Wachsmuth pp. 264
The continuous winds from the east are called east winds, those from the north north winds, those from the west west winds, and ⟨those⟩ from the south south winds.1019