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:« THE EXI'LUUATIOX OF THE CAUCASUS<br />
indistinct, but perpetual murmur of falling torrents, and the<br />
momentary roar of avalanches as they plunge from the frozen cliffs<br />
of neve underfoot into the hidden depths of the glaciei's. The vast<br />
blue landscape, some 500 miles in diameter, outspread beneath, is<br />
spanned by a lii-oad belt of snowy heights and hollows, as the sky<br />
is arched at night by the Milky Way. These heights do not show<br />
as the single wall indicated on maps, but rather as a system of short<br />
crests, running generally at an acute angle<br />
to the direction of the<br />
chain, and more nearly due east and west. We can distinguish<br />
generally two (sometimes more) principal ridges roughly parallel.<br />
The peaks are encased in frosty armour, full of subtle lines and<br />
delicate<br />
flutings, where the corniced crests throw their bands<br />
of shadow on to the broad breastplate of snow. Below the<br />
Bergschrund, or lissure that belts the mountain sides, heavy folds<br />
of stainless neve fall to the lower glaciers. Where the crags are<br />
bare they show the boldness and I'igidity of outline characteristic of<br />
the harder crystalline rocks. In the Central Ciroup, round Shkara,<br />
Koshtantau, and Dykhtau, the forces, whatever they were, that gave<br />
the chain its being, seem to have been most strenuously exerted :<br />
the crests are higher, the slopes steeper, the trenches more profound.<br />
There is a vigour, an extravagance, one might say, in the mountam<br />
structure that may recall the Alps of Dauphine/<br />
The hollows between the heights are filled by enormous iirths of<br />
ice, whose basins stretch out parallel to the crests, snowfield beyond<br />
snowfield, on a scale hardly found in the Alps except at the bases<br />
of the Jungfrau and the Finsteraarhorn." From the 'dusky doors'<br />
of the glaciers rivers flash, full-grown, into life, and our eyes follow<br />
their course in either direction, north or south, as they linger for a<br />
time in broad forest basins or grassy trenches at the foot of the<br />
snows, and gather their tributaries before battling a way out through<br />
deep ravines and a maze of foothills to the distant steppe or the<br />
dim surface of the Black Sea. What is the character of the country<br />
' The Bezingi Glacier is a geological museum of fragments of crystalline rocks fallen from<br />
the neighbouring ranges, as curious to the eyes as obnoxious to the soles of those who tramp up<br />
this magnificent ice-stream.<br />
- The Aletscli Glacier is longer than any glacier in the Caucasus. But the Bezingi and<br />
Karagom are little inferior to any other glacier in the Alps.