Chap. III. FORMATION OF AMAZONS DELTA. ill 



river southward and south-westward, a gi'eat extent of 

 country is traversed which seems to have been made up 

 wholly of river deposit, and here the land lies somewhat 

 lower than it does on the sea-coast. The rocky and 

 sandy country of Marajo and other islands of the delta 

 towards the sea, is so similar in its physical configu- 

 ration to the opposite mainland of Guiana that Von 

 Martins concluded the whole might have been formerly 

 connected, and that the Amazons had forced a way 

 to the Atlantic through what was, perhaps, a close 

 series of islands, or a continuous line of low country. 



