mine, on the effects
of great alternations of
http://www.base80.com/index.php/ climate on geographical distribution. I believe that the world has recently felt
one of his great cycles of change; and that on this view, combined with modification through natural
selection, a multitude of facts in the present distribution both of the same and of allied forms of life
can be explained. The living waters may be said to have flowed during one short period from the
north and from the south, and to have crossed at the equator; but to have flowed with greater force
from
http://tt.17www.net/forum.php?mod=viewthread&tid=1505086 the north so as to have freely inundated the south. As the tide leaves its drift in horizontal lines,
though rising higher on the shores where the tide rises highest, so have the living waters left their
living drift on our mountain-summits, in a line gently rising from the arctic lowlands to a great height
under the equator. The various beings thus left stranded may be compared with savage races of man,
driven up and surviving in the mountain-fastnesses of almost every land,
http://htxx.pynet.net/index.asp which serve