er, the plants will not make rapid
growth after the first cutting of the season; but under conditions the
opposite, they will grow continuously from spring until fall. Continuous
growth may be secured through all the season on irrigated land. Although
the plants root deeply, they will succumb under drought beyond a certain
degree, and in some soils the end comes much more quickly than on
others; on porous and sandy soils, it comes much sooner than on clays.
On the latter, drought must be excessive to destroy clover plants that
have been well rooted. White clover can withstand much heat when
supplied with moisture. Moderate temperatures are much more favorable to
its growth.

Spring weather, characterized by prolonged periods of alternate freezing
and thawing, is disastrous to the plants on dry soils, possessed of an
excess of moisture, when not covered with snow. They are gradually drawn
up out of the soil and left to die on the surface. In some instances,
the destruction of an otherwise fine stand is complete. In other
instances, it is partial, and when it is, a heavy roller run over the
land is helpful in firming the soil around the roots that have been thus
disturbed.

Medium red clover can be grown with some success in certain parts of
almost every State in the Union. But in paying crops it is not much
grown south of parallel 37 deg.. With irrigation it grows most vigorously in
the mountain valleys between the Rocky and Cascade mountains, and
between about 37 deg. and 50 deg. north latitude. In these valleys its habit of
growth is perennial. Without irrigation, the highest adaptation, all
things considered, is found in Washington and Oregon, west of the
Cascades, except where shallow soils lying on gravels exist. East of the
mountains, the best crops are in the States of Michigan, Ohio, Indiana,
Kentucky, Illinois, Missouri, Iowa, Wisconsin and Minnesota. The soils
of Northern Minnesota, Wisconsin and Michigan, that have produced
hardwood timber, have unusually high adaptation to the growth of this
plant, and as the snow usually covers the ground in these areas in
winter, the crop may be relied upon with much certainty. But on the
sandy soils, which more or less abound in these areas, it does not
succeed so well. It has not yet proved a marked success in Western
Minnesota or in the Dakotas, owing in part probably to the lack of the
proper bacteria in the soil. Its growth in these localities, however, is
extending