The southerly summer winds of the Asiatic seas between the equator and the tropic do not extend to the coasts of Java, and the southeasterly trade winds are there developed in the usual manner.
The main watershed follows a tortuous course which crosses the mountainous belt just north of New river in Virginia; south of this the rivers head in the Blue Ridge, cross the higher Unakas, receive important tributaries from the Great Valley, and traversing the Cumberland Plateau in spreading gorges, escape by way of the Cumberland and Tennessee rivers to the Ohio and Mississippi, and thus to the Gulf of Mexico; in the central section the rivers, rising in or beyond the Valley Ridges, flow through great gorges (water gaps) to the Great Valley, and by southeasterly courses across the Blue Ridge to tidal estuaries penetrating the coastal plain; in the northern section the water-parting lies on the inland side of the mountainous belt, the main lines of drainage running from north to south.
At Lamb Head, its southeasterly point, is a broch and Pictish pier, and about 2 m.
Owing to the distribution of the mountain-chains, the principal rivers flow in an easterly or southeasterly direction; the Danube falls into the Black Sea; the Maritza, Mesta, Struma (Strymon), Vardar and Salambria into the Aegean.
D'Abreu, sailing in a southeasterly direction from the Straits of Malacca, skirted the southern coast of Borneo and laid up his ships at Amboyna, a small island near the south-western extremity of Ceram.
