370 



DR. C. S. DU" EICHE PEELLEE ON FLTJVIO-GLACIAL [Aug. 1895, 



Zurich, where, perhaps more than in any other part of Switzerland, 

 such deposits are laid open within a comparatively small and easily 

 accessible area. 



Kg. 2. 



PLAN OF LAKES 



ZURICH, ZUG and AEGEKI. 



Scale: 1:350,000= -iSi inch to the mile. 



River-courses ditrin^ glacial a7id 

 interglacial periods. 

 XXXXX Crest-line #/ divide of drainage-area, 

 '-glacial and interglacial 



Du Riche Preller Det. 



> °OOCXXXXXXX> 



The first suggestion of certain gravel-beds at the foot of the 

 Italian Alps being older than the two Pleistocene glaciations then 

 generally accepted may be said to have emanated from Stoppani, 1 

 Desor, 2 and notably from Renevier, 3 as early as 1875. In 1882, 

 Prof. Penck 4 succeeded in showing, on the evidence of Decken- 



1 'II Mare Glaciale ai piedi delle Alpi.' 



2 ' Paysage Morainique.' 



3 ' Eelations du Pliocene et du Grlaciaire aux Environs de C6me,' Bull. Soc. 

 geol. France, ser. 3, vol. iv. (1876) p. 187. 



4 'Die Vergletscherung der Deutschen Alpen,' Leipzig, 1882. 



