DIRECTIONS OF RIVERS. 
229 
and to the Lakes of Neuchatel and Constance into 
the Danube, and so to the Black Sea. Then, after 
the present valley was opened between Waldshut and 
Basle, they flowed by Basle and the present Rhine, 
and after joining the Thames, over the plain which 
now forms the German Sea into the Arctic Ocean 
Feet 
12305 - 
9833 - 
8194 - 
6555 - 
4916 - 
3277 - 
1639 - 
Fig. 62. — Section across the Val d’Entrcmont at Bourg St. Pierre. 
1=100,000. 
between Scotland and Norway. Finally, after the 
opening of the passage at Fort de l’Ecluse, by 
Geneva, Lyons, and the valley of the Saone, to the 
Mediterranean. 
In the upper parts of the district there have also 
been some changes. 
Fig. 6 2 shows the river terraces on the Dranse 
