Striking out from Manchuria it trends eastward to the sea at Cape Bruat on the 41st parallel, thence it strikes southwest about eighty miles to the region west of Broughton’s Bay (the narrowest part of Corea), whence it bears westward to the sea at the 37th parallel, or Cape Pelissier, where its angle culminates in the lofty mountain peaks named by the Russians Mount Popoff—after the inventor of the high turret ships. From this point it throws off a fringe of lesser hills to the southward while the main chain strikes southwest, and after forming the boundary between two most southern provinces reaches the sea near the Amherst Isles. Nor does its course end here, for the uncounted islands of the Archipelago, with their fantastic rock-ruins and perennial greenery, that suggest deserted castles and abbeys mantled with ivy, are but the wave-worn and shattered remnants of this lordly range.

This chief feature in the physical geography of the peninsula determines largely its configuration, climate, river system and watershed, political divisions, and natural barriers. Speaking roughly, Eastern Corea is a mountainous ridge of which Western Corea is but the slope.

No river of any importance is found inside the peninsula east of these mountains, except the Nak-tong, which drains the valley formed by the interior and the sea-coast ranges, while on the westward slope ten broad streams collect the tribute of their melted snows to enrich the valleys of five provinces.

Through seven parallels of latitude this range fronts the sea of Japan with a coast barrier which, except at Yung-hing Bay, is nearly destitute of harbors. Its timbered heights present a wall of living green to the mariner sailing from Vladivostok to Shanghai.

Great differences of climate in the same latitude are observed on opposite sides of this mountain range, which has various local epithets. From their height and the permanence of their winter covering, the word “white” forms an oft-recurring part of their names.

The division of the country into eight , or provinces, which are grouped in southern, central, and northern, is based mainly on the river basins. The rainfall in nearly every province finds an outlet on its own sea-border. Only the western slopes of the two northeastern provinces are exceptions to this rule, since they discharge part of their waters into streams emptying beyond their [[6]]boundaries. The Yalu, and the Han—“the river”—are the only streams whose sources lie beyond their own provinces. In rare instances are the rivers known by the same word along their whole length, various local names being applied by the people of different neighborhoods. On the maps in this work only the name most commonly given to each stream near its mouth is printed.

In respect to the sea basins, three provinces on the west coast form one side of the depression called the Yellow Sea Basin, of which Northeastern China forms the opposite rim. The three eastern dō, or circuits, lining the Sea of Japan, make the concave in the sea basin to which Japan offers the corresponding edge. The entire northern boundary of the peninsula from sea to gulf, except where the colossal peak Paik-tu (‘White Head’) forms the water-shed, is one vast valley in which lie the basins of the Yalu and Tumen.

Corea is, in reality, an island, as the following description of White Head Mountain, obtained from the Journal of the Chinese Ambassador to Seoul, shows. This mountain has two summits, one facing north, the other east. On the top is a lake thirty ri around. In shape the peak is that of a colossal white vase open to the sky, and fluted or scolloped round the edge like the vases of Chinese porcelain. Its crater, white on the outside, is red, with whitish veins, inside. Snow and ice clothe the sides, sometimes as late as June. On the side of the north, there issues a runnel, a yard in depth, which falls in a cascade and forms the source of the (Tumen) river. Three or four ri from the summit of the mountain the stream divides into two parts; one is the source of the Yalu River.

In general, it may be said to dwellers in the temperate zone that the climate of Corea is excellent, bracing in the north, and in the south tempered by the ocean breezes of summer. The winters in the higher latitudes are not more rigorous than in the State of New York; while, in the most southern, they are as delightful as those in the Carolinas. In so mountainous and sea-girt a country there are, of course, great climatic varieties even in the same provinces.

As compared with European countries of the same latitude, Corea is much colder in winter and hotter in summer. In the north, the Tumen River is usually frozen during five months in the year. The Han River at Seoul may be crossed on ice during two or three months. Even in the southern provinces, deep snows cover the mountains, though the plains are usually free, rarely [[7]]holding the snow during a whole day. The lowest point to which the mercury fell, in the observation of the French missionaries, was at the 35th parallel of latitude 8° and at the 37th parallel 15° (F.). The most delightful seasons in the year are spring and autumn. In summer, in addition to the great heat, the rain falls often in torrents that blockade the roads and render travelling and transport next to impossible. Toward the end of September occurs the period of tempests and variable winds.