Yol. 52.] DEPOSITS, ETC., IN SUBALPINE SWITZERLAND. 563 



passing in its upper, coarser portion, into 1 metre of morainic 

 material. The transition-zone contains numerous striated pebbles 

 and boulders, aud, as is universally the case in Alpine glacial 

 deposits, it is the dark grey limestone which takes ice-scratches 

 and impressions of all kinds more readily than any other rock. 

 The conglomerate is scarcely hard enough to be genuine Decken- 

 schotter, and contains, moreover, small lumps of the latter. Hence 

 it must be regarded as being the product, not of the first, but of 

 the second glaciation. At any rate, the deposit clearly marks a 

 glacial oscillation, and it is on this account that it is of special 

 interest. 



Even putting aside the last-named, somewhat doubtful, deposit, 

 we have thus in the Baden basin distinct and conclusive evidence of 

 Deckenschotter at three different levels — that is, close to the river 

 at contour 360, and on the slopes of the hills at each side of the 

 basin, at contours 480 and 412 respectively. 



Wettingen. — The next important occurrence is about 3 kilometres 

 above Baden, near the Convent of Wettingen above the sharp curve 

 described by the Limmat, which is here crossed by two railway 

 viaducts. Beginning under the upper viaduct at contour 370, a 

 cliff of very compact conglomerate about 6 metres in depth runs for 

 a distance of a few hundred metres up the river along the left bank, 

 jutting out at intervals from the younger gravel and overlying 

 moraine. Exactly under the viaduct and about 10 metres from the 

 left abutment, the Molasse, which here appears about 2 metres above 

 the river-level, has a slight but distinct dip up the valley, while 

 the Nagelfluh cliff which directly overlies it dips in the opposite 

 direction (fig. 4). The vineclad slope of the opposite bank of the 



Eig. 4. — Section at Wettingen, near the Upper Viaduct. 



^,'^Cauernous 

 Nagelfluh 



Molasse 



362 m. above 

 Riuer Limmat sea-leuel 



river, composed of loose gravel and moraine, is likewise marked by 

 several projecting remnants of the same conglomerate, in con- 

 spicuous contrast to the loose gravel, which, in a pit reaching down 

 to the river's edge, is irregularly overlain by moraine. The 

 occurrence at Wettingen therefore presents features precisely 

 analogous to that of Baden : the phenomenon of the younger 

 deposits covering and being banked up against the old con- 

 glomerate is manifest in both cases. To the left of the Convent of 

 Wettingen lies the Deckenschotter deposit of Teufelskeller, already 



