FROM RIO DE JANEIRO TO THE RAPIDS OF THE MADEIRA. 68 
Above the Praia do Tamandua are seen tlie first precursors of the 
cliffs, which cause the rapids — small islets of rock, and boulders of granite 
near their margins, such as we had not soon for all the long months since 
wo left the sea-coast. Soon chains of hills came in sight on both sides ; 
and, after having doubled the next wooded projection of the bank, the 
Eapid of Santo Antonio, the first of a long scries, lay before us. 
