the outer-alps. 
71 
several miles have, as Quereau points out, been 
established in Scotland, in Provence, in the Appa- 
lachians, and as we have already seen, by Heim m 
Glarus. 
However improbable, not to say impossible, this 
explanation may at first sight appear, we must 
remember the enormous disturbances of which we 
have the clearest proof. As already mentioned it 
has been calculated that the strata which lie between 
Basle and MUan, a distance of 130 miles, would, 
when extended, have occupied 200 miles. 
The origin of the “Klippen” is still, however, a 
matter of discussion, and M. Ch. Sarasin,* and 
M. Schardt,** differ in several respects from the 
conclusions of M. Quereau. 
* Arch, de Geneve. 1 894. 
** Schardt, “Struct. Geol. des Pre-Alpes,” Bib. Vmv., 
(Geneve) 1892. 
