It would seem to be correct to assign third place to stiff clays, whether of the white or red cast. The better that these are supplied with vegetable matter, and the more moist the season, the better is the stand of the clover likely to be. In seasons that are generally favorable, excellent crops of clover may be obtained from such soils, but in dry seasons it is easy to secure a good stand of the plants. They are also considerably liable to heave in these soils in the spring of the year from the action of the frost. The more perfectly they are drained, the less will be the injury from this source, but it is scarcely possible to drain such lands so perfectly that there will be no loss of clover plants in these from the source named in the winters, characterized by frequent rains, accompanied by frequent alternations of freezing and thawing. The loss from this source in such lands varies from nothing at all to 100 per cent. Nearly, if not equal to the former, are dark loam soils with a gravel or sand drainage underneath, providing, first, that the sand and gravel do not come too near the surface, and second, that the normal rainfall is sufficient. On such soils it seldom fails to grow, is not liable to heave in the winter or spring, and usually produces excellent crops when these soils are properly tilled. It has special adaptation for being grown on calcareous or limy soils. It also, usually, grows well on soils underlaid with yellow clay of more or less tenacity. The black humus soils of the prairie vary much in their suitability for growing medium red clover. Much depends on the clay content in such soils. The more of this element in them and the nearer an underlying clay subsoil is to the surface, the better will this clover grow on them. In large areas of the prairie, red clover will grow more successfully on the subsoil when laid bare than when on the surface soil. It has been the experience in many instances that when the humus soils of the prairie, porous and spongy in character, were first tilled, clover grew on them so shyly that it was difficult to get a good stand of the same until it had been sown for several seasons successively or at intervals. Eventually, good crops were grown on these lands, and are now being grown on them. This was the experience that faced a majority of the first settlers on the prairie where excellent crops are now being grown, and it is the experience which faces many to-day, who are located on sections of the prairie but newly broken.