384 



DE. C. S. DTT EICHE PEELLEE ON PLTTVIO-GLACIAL [Aug. 1 895, 



As regards the deposits more especially dealt with in this paper, 

 they may he tabulated as follows x : — 



Geological 

 Periods. 



Glacial and 



Interglacial 



Peeiods. 



Fluvio-Glacial and Interglacial 

 Deposits. 



Analogous 

 Deposits. 



Present. 



Post-glacial. 







Upper 

 Pleistocene. 



Third glaciation. 







Middle 

 Pleistocene. 



Second inter- 

 glacial period. 



1 Upper Gravels of 

 T . , . , gm | Kander. 

 Interglacial -g -g J Umaoh . 



deposits. ^]Moerschwil. 

 V Kander. 



Fluvio-glacial Upper Terrace- 

 deposits, gravels. 



Lignite-deposits, Sont- 



hofen, Algau, Bavaria; 



Chambery, Savoy ; 



Leffe, North Italy. 

 Alluvions des terrasses, 



Ehone Valley, and 



Bresse district, a / 



Lyons. 

 Upper Terrace-gravels, 



North Switzerland. 



Second maximum 

 glaciation. 



Lower 

 Pleistocene. 



First interglacial 

 period. 



Interglacial w -g 

 deposits. ■»!§ 



2 S: 



2,^ 



bum . 

 O O 

 V a 



Fluvio-glacial ■- §3 

 deposits. > | 







''Kander and 



Simme n /Thun. 



Lorze Valley 



n/ Zug. 

 Glatt Valley. 

 Gebensdorfer 



Horn. 



Baden n / Zurich. 



, Uetliberg, Zurich 



Alluvioni antichi, North 

 Italy. 



Alluvions anciennes 

 (des plateaux), Ehone 

 Valley, and Bresse 

 district, Lyons. 



Decbenschotter, Aus- 

 trian and Bavarian 



Alps. 



Pliocene. 



First glaciation. 



My conclusions differ from those of Dr. Du Pasquier, more 

 especially as regards the Lorze valley-deposit, which he classes in 

 the second, and which I class in the first glacial and interglacial 

 period ; from those of Prof. Heim as regards the moraine under- 

 lying and overlying the Lorze Nagelfluh, which moraine he refers 

 to the Eeuss, but which is more probably of the Sihl and Lorze ; 

 and lastly from those of Dr. Zollinger as regards the conglomerates 

 of the old Kander and Simme deltas, which he refers to the second, 

 and which I refer to the first glacial and interglacial period. Under 

 all circumstances, the various Cavernous Nagelfluh -deposits now 

 recognized as Pliocene — that is, Tertiary — will involve extensive 

 alterations in the Swiss geological maps in which these deposits 

 figure as Quaternary. For the same reason, the term ' pre-glaciaF 

 must be used in respect of three, and not of two general glaciations. 



1 The gravel-conglomerates (Cavernous Nagelfluh) are referred to as both 

 fluvio-glacial and interglacial, because they gradually pass from one category 

 into the other. 



