PLAINS OF THE ELBE, ODEE, AND VISTULA. 



311 



to tbe eastward. The work of replanting them is exceedingly difficult, owing to 

 the enormous masses of drifting sand which have to be consolidated. At several 

 places the sea has broken through the dunes, but the breaches effected by it have 



Fig. 179. — The Kurische Haff and the Delta of the Memel. 

 Scale 1 : 300,000. 



B A L T I G 



20?30'j:.ofa 



Ancient Alluviitm Sedimentary Hocks 



10 Miles. 



been closed again, and the sole entrance now is through the Gut of Memel, only 

 1,300 feet wide, and difficult to navigate. 



Amber. — The shores of the Haffs and of the peninsula of Samland have from 

 immemorial times attracted merchants in search of the amber cast up on them. 

 Greeks and Etruscans, and perhaps even Phœnicians, travelled thither through 



