Quart. Journ. Geol. Soe Vol XXXV P_XXAVIL 
grr 
Z-\PORPHYRY 
— 
eat 
Andhonio 
iy m 
it 
73e 
\ 
Aquary Rt. - a 
> 
English Statute Miles. 
700 
60 
Recent Alluvium. [3] 
1 
50 
OldRiverDeposit. =] 
Map of a portion of South America, showingthe position and extent of the Old River Deposit on the Amazon, eastof Tabatinga. 
Dancerricio bit. 22 Beorono S’ Covent Ganoew. 
