EUROPEAN RUSSIA 531 MEDITERRANEAN RUSSIA The southern slopes of the mountains of the Krim Peninsula, and the portion of the Black Sea coast bordered by the Caucasus, have the mild temperatures and summer drought so typical of the Mediter- ranean. Consequently a Mediterranean vegetation occurs, and such crops as winter wheat and corn are raised. This environment encour- aged settlement by the Greeks during their period of maximum colonial and commercial expansion, and even today the Hellenic influence is strong throughout these shore lands. The natural beauty of the region is comparable to that of the French Riviera, and this, combined with its delightful climate, caused it to be the winter playground of the former Russian nobility. Its wooded slopes are dotted with magnificent marble palaces which formerly housed the leading aristocrats of Russia, but which are today used as rest homes and hospitals for the factory workers and the peasants. THE CAUCASUS The Caucasus Mountains are a portion of the great Alpine Fold. They are young mountains, being high, rugged and very difficult to cross. No railroads cross the range at present, but plans are under way for the construction of a line which, through the use of a long tunnel, will connect Gori in Georgia with the northern slope. At present a highway leads over the Dariel Pass to Tiflis, and a complete system of air lines connects the cities to the north and south. The mountains contain many isolated valleys where remnants of nearly every people who have ever crossed the area are to be found. Isolation has caused these peoples to preserve old customs, traditions and languages which have long since disappeared from more accessible sections. Little won- der the Caucasus are frequently called "a museum of peoples.'* To the south of the Caucasus lies a low region composed of the valleys of the Rion and the Kura. Through these valleys passes a rail line connecting Baku with the Black Sea ports of Poti and Batum. Tiflis, the capital of the Transcaucasian Republic and the largest city of the region, is located where the north and south route over the Dariel Pass connects with this east and west rail line. Agriculture of a Mediterranean type is carried on in the Rion Basin, but the broad and fertile Kura Valley has been largely useless, due to the light rainfall. However, extensive irrigation projects are at present tinder construe-