8G2 
BYSIN or THE AMAZON. 
Vertentes and the Eio c!e Tres Barms (tributary streams of 
t le iiraguay and the Topayos), several ridges of the Monts 
Parcels run nortliward. On the right bank of tlie 'I’opayos 
a series of little hills advanco as far as t!ie parallel^oi' o° 
south -atitude, to the fall (cachoeira) of Maraeana; 'vhile 
iurther west iii the Bio Madeira, the course of winch is 
nearly parallel with that of the Topayos, the rapids and 
cataracts indicate no rocky ridges beiond the parallel of 8° 
ihe principal depression of the basin of which we have iust 
basin ot the Lower Orinoco, but at the centre, where the 
^reat recipient ol the Amazon forms a longitudinal furrow 
inclming troiii west to east, under an angle of at least 25" 
the bnT’’ I n’ade at Javita on 
Lie banks of the Tuaimui, at \asivia on the banks of the 
Cassiquiare, and at the cataract of Bcnteina, in the Upper 
Maranon, seem to prove that the rising of the Llanos of 
Sofokr*' T (at the foot of the Sierra Parime), is 
If’ i "'estward (at the foot of the Cordillera of 
the Andes of Loxa), 190 toises above the sea-level. 
to /wsm of tU Amazon stretching from south 
lboT5ooo^^l 7'’f "l^'id-strait by which, between 
^ ai'd -0 of south latitude, the plains of the Amazon com- 
municate with the Pampas of Buenos Ayres. The western 
SrPorao between the knot 
of 1 orco and Potosi and that of Iluanuco and Pasco. Part 
A^’l ^ widening of the 
Cmdilleras of Apolobambaand Cuzco and the whole promon- 
toiy of Cochabiunba, advance eastward into the plains of 
r promontory h^s given 
b U 1 7 >dea that the Andes are linked with a serfes of 
1 lls which the berras dos Parecis, the Serra Melgueira, and 
the Pernaudo, throw out towards 
Brayri TT unknown part of the frontiers of 
Brazil and Upper Peru merits the attention of travellers. It 
is understood that the ancient mission of ban Jose de Chi- 
quitos (nearly at. 17°; long. C7° 10', supposing Santa Cr7 
Sait .md'V!" ‘■'7^ sifuated inlhe 
plains, and that the mountains of the spur of Cochabamba 
b,..«n the Gu.,„k (liio di lik,™) .„rthe 
