The last great river of the Ukraine is the Kuban, 800 km. long. It rises in the glaciers of the Elbrus and flows, a roaring mountain stream, in a narrow and deep rocky defile. A great number of the mountain streams of the northern Caucasus slope empty into the Kuban and [84]make it a stream of considerable volume. In the Stavropol hill country the Kuban turns in a widely-drawn curve toward the west. Its valley becomes broad and flat, covered with bogs, swampy forests and wildernesses of reeds. From the left side it receives a number of tributaries from the Caucasus, the most important being the Laba and the Bila. In the midst of immense plavni, lakes and limans, the Kuban forms its many-armed delta, which carries its waters partly to the Black Sea, partly to the Sea of Azof, and embraces the peninsula of Taman. The Kuban always has a large volume, the floods coming in the early summer, when the snow blanket of the Caucasus melts. Navigation is greatly injured because of banks of sand and rubble, brush and tree-stumps, but is, nevertheless, possible for a distance of over 350 km. [85] [Contents] The Ukrainian Climate The great uniformity of Eastern Europe, in respect to its morphology, we find repeated in its climatic conditions. But, to the same extent that the attentive investigator, upon close observation, finds several independent morphological individualities within the Eastern European low country, he will also observe important climatic differences in this great half-continent. The Central European climatic zone stops at the western borders of the Ukraine. Similarly, the cool Eastern European continental climate, which rules over all of White and Great Russia, embraces only insignificant borderlands in the north of Ukrainian territory. The Ukrainian climate assumes an entirely independent position. It is more continental than that of Central Europe and differs from that of Great Russia in its greater mildness. The Ukraine shares with France the advantage that in its territory the direct transition from the temperate climate of Eastern Europe to the Mediterranean climate of Southern Europe takes place.