The typical soil of the transition country, as well as of the steppe region, is the black earth (Ukr. chornozem, Russ. chernozyom). Every Ukrainian is familiar with this blackish, ever fertile soil, which cannot be duplicated the world over and which makes the Ukraine the granary of Russia. The black earth is a product of the transformation of loess, with a strong admixture of the products of decomposition of plants. In places it attains a depth of 2 m. and over. The black-earth region extends longitudinally thru the Ukraine, embracing over three-fourths of its territory. The northern boundary of the black-earth region passes from Lemberg along the north border of the Podolian and Dnieper Plateau as far as Kiev, and then northeast to the bend of the Aka, south of Kaluga. The southern boundary describes a line drawn thru the Boh and Dnieper deltas to their limans and the city of Mariupol. The entire Kuban plain and the plateau of Stavropol also belong to the region of black earth. Along the northern border of the black-earth region extends a transition zone of about 100 kilometers width, whose black earth contains 4 to 6% decaying plant matter. South of this lies the wide main area of the black earth with 6 to 10% decaying matter. On the sea and along the lower Dnieper the region ends with another transition zone, whose brownish black earth contains 4 to 6% of decaying matter. On the Sea of Azof and in Southern Crimea the brown dry steppe soil, with numerous islands of saline soil (solonchaki) and a peculiar vegetation, inclined to absorb salt, prevails. These are present also in the remaining black earth region, and there are also islands and strips of saline earth along the rivers and the seashore. In the steppe region, the steppe is not the only plant formation. Above all we must differentiate between the meadow-steppe of the transition zone and the real steppe of the south, as well as the desert steppe in some districts [105]of Crimea and the Caucasus. Besides this shrub formation, meadow-woods (luhi) and real forests are found in the steppe region.