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to the South, than to the North, and Weftwards than 
Eaftwards. Many Inftances of this might be given 
in particular Mountains in Swifferland , as the Gemmi , 
the Mons fraElus and fo forth j but it is alfo evident- 
ly true with Regard to the whole. Thofe are the 
highefl Mountains, which feparate Vallefia, the Can- 
ton of *Vri, and the feveral Leagues of the Grifons , 
from Savoy , Tiemont , and the Tirol, which lie to the 
South, or South-Eaft. Thofe very Countries are, 
as it were, one continued Set of high Mountains, quite 
to the Mediterranean Sea, and the like Strufture feems 
to be continued farther on into that Sea itfelf. The 
! Tyrenean Mountains alfo are but a Continuation of 
that vaft Chain, which begins in the Lepont'ue Alpes , 
or the Mountains in the upper Valle Jia^ the Canton 
of Dry and Rhcetia , and from thence fpreads itfelf 
chiefly Well and South. On the contrary to the Eaft 
and North they break off by Degrees into gentle Plains, 
which appears evidently by the vaft 1 rafts of Ground, 
which the Rhine for Inftance, and the ‘Danube com- 
pafs, before they lofe themfelves, the one into the Ger- 
man Ocean, the other into the black Sea, whereas the 
Rhofne on the other Side, quickly and with a pro- 
portionable Velocity reaches the Mediterranean. The 
fame Obfervation, with Regard to the abrupt Steepnefs 
of Mountains to the South and Weft, holds true in other 
Parts of Europe , remarkably in England and Norway , 
more or lefs in other Countries. And fo far as our 
Maps, and the Accounts of Travellers go, the fame 
Thing is obfervable in other Parts of the World, but 
mod evidently in the high Mountains of T eru and Chi - 
It in South America , which terminate very abruptly 
Weftwards into the Eacifick Sea, but gradually decline 
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