The Connection Between The Transportal
Of Boulders And The Presence Of Ice In Some Form, Is Strikingly
Shown By Their Geographical Distribution Over The Earth.
In South America They Are Not Found Further Than 48 Degs.
Of
latitude, measured from the southern pole; in North America
it appears that the limit of their transportal extends to
53.5 degs.
From the northern pole; but in Europe to not more
than 40 degs. of latitude, measured from the same point. On the
other hand, in the intertropical parts of America, Asia, and
Africa, they have never been observed; nor at the Cape of Good
Hope, nor in Australia. [16]
On the Climate and Productions of the Antarctic Islands.
- Considering the rankness of the vegetation in Tierra del
Fuego, and on the coast northward of it, the condition of the
islands south and south-west of America is truly surprising.
Sandwich Land, in the latitude of the north part of Scotland,
was found by Cook, during the hottest month of the
year, "covered many fathoms thick with everlasting snow;"
and there seems to be scarcely any vegetation. Georgia, an
island 96 miles long and 10 broad, in the latitude of Yorkshire,
"in the very height of summer, is in a manner wholly
covered with frozen snow." It can boast only of moss, some
tufts of grass, and wild burnet; it has only one land-bird
(Anthus correndera), yet Iceland, which is 10 degs. nearer the
pole, has, according to Mackenzie, fifteen land-birds.
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