Lithuania are very important for the country's economic future. Thus south, as north, of the Petrograd-Vologda line, we have contrasted conditions in the west, the centre, the east, but on the south the Finn element is much less marked, and the central European one much more so. Moving south again beyond the Pripet marshes we find corresponding contrasts. On the west the Polish platform grades south-eastward into the Ukraine or Border Land, with its great stretches of loess, but also its patches of forest, especially near the waterways. The forest thins out towards the open steppe of South Russia, which in turn grades into desert patches near the Caspian. The open steppe of South Russia is but the continuation of the great steppes of Asia. To understand the peoples of this belt let us remember first that the ancient graves contain many long-headed skulls, and that this element in the people probably persists to a greater extent than average figures show, in spite of the pressure of central European, of late at least Slavonic-speaking, immigrants from the west via Kief, and of Tatar immigrants from the east. Byzantine elements from the south need also to be allowed for in the people as well as in their civilization, in which matter Kief has become as markedly the Byzantine sacred city of Russia as Canterbury is the Romano-Gallic sacred city of England. In the Ukraine Poles have done a good deal of organizing work, and put themselves in the position of landowners and leaders over a Ruthenian peasantry. The landlords were attached to the Roman Catholic faith, but the peasants to the Uniate Church until the latter was crushed by Russia. The border of the Ukraine towards the steppe is a very doubtful matter. Here is the zone of unrest, with Tatar pressure at times and European pressure at others; it is the limit of the settled life, and the {78} cultivated patches have needed specially watchful defence. Under these conditions the Cossack people have grown up with a military order of society and landholding for service. The people seem to include an element of the old long-headed population (see pp. 11, 14, and 77), together with both Slav and Tatar contributions, Jews and Germans in the towns which are mostly of recent creation, and a motley gathering of escaped serfs and landless men from all around.