btless be correct to say that it is indigenous to Europe, and
probably that it is indigenous to each of the three continents named. It
is not indigenous to America, but was introduced into the same probably
from Great Britain or Scandinavia. In some parts of North America it
grows with a luxuriance equal to, if not, indeed, greater, than that
shown by this plant when grown under the most favorable conditions
which Europe furnishes.

This plant is better adapted to a cool and humid climate than to one hot
and dry. It is even more hardy than medium red clover, in the sense of
enduring cold, and will live under conditions of climate so austere as
to be fatal to red clover. It may, therefore, be grown further north
than medium red clover, and under conditions so exposed as to cause
medium red clover to fail. But it does not succeed quite so well as the
former toward the southerly limit of the successful production of medium
red clover; hence, the limit of production in the semi-arid belt ceases
sooner than in the case of the other variety. The best climatic
conditions for growing it are found not far from the boundary line
between the United States and Canada, and in the vicinity of the
Atlantic and Pacific oceans and the Great Lakes.

In the United States the best crops are grown in the States which border
on Canada, and in these the highest adaptation, climate and soil
considered, is found in Michigan, Wisconsin and Northeastern Minnesota.
But in New York the adaptation is also high, and also in certain parts
of Montana, Idaho and Washington. Good crops may also be grown in nearly
all the second tier of States that lie southward from the Canadian
boundary. The exceptions are those embraced in the semi-arid belt.
Further south than the second tier of States to which reference has just
been made, the successful growth of alsike generally lessens, and yet in
parts of these States, as, for instance, Kentucky, Tennessee and
Missouri, good crops are grown. Some of the Rocky Mountain valleys, more
especially those that can be irrigated, and that are also sufficiently
elevated, grow excellent crops of alsike. Much of the province of
Ontario has very high adaptation to the growth of alsike clover, and in
several counties of that province large quantities are grown, not only
for hay, but also for seed. In Ontario County in the said province, are
certain clay soils rich in lime; in fact, almost marley in character,
which have been