i86 WILLIAM H. HOBBS 



Buxtorf displays to the best possible advantage.^ In these profiles 



(Fig. 28) the western (lower) ones reveal a slightly under turned 



'anticline with perhaps some late bulging-upward of the upper limb, 



Kurhsiis Weissensteiny 



I I Diluvium 



iTerliar 

 Bohnerz 



Unl^Ma/m. 



Mtttl. 

 Uiit. 



| ;.yv. | Trias 



Fig. 28. — Series of geological profiles through the Weissenstein, Chain Jura, show- 

 ing the development of a backfold above the Bohnerzformation, which is represented 

 in black (after Buxtorf). 



but with no indication of backfolding. Farther to the eastward, 

 however, where a thin zone of the Bohnerz formation m. part replaces 



^Aug. Buxtorf, "Geologische Beschreibung des Weissensteintunnels und seine 

 Umgebung," Beitr. z. Geol. Karte d. Schweiz, N.F., XXI (1907); C. Schmidt, A. 

 Buxtorf, und H. Preiswerk, Fiihrer zu den Exkursionen der dentsch. geolog. Gesellschaft 

 im siidl. Schwarzwald, im Jura und in den Alpen, 1907, pp. 21-22. 



