294 PEOrBSSOE TTNDALI. ON THE VEINED STErOTUEE OF GLACIEES. 
veins, about 16 feet deep, which were exposed on the waUs of a ^ 
glacier. They constituted a kind of imeHed glacier trap, and I was led to a kno led„ 
*tne°tfmy“earitertSorbase of the ice-fall of the Talefee, I ohse^ed a^c^ous 
disposition of the veined structure on the walls of some of the crer asses, fig. - repre 
sents one case of the kind, and fig. 13 another, and numerous srmdar ones find a plac 
Fig. 13. 
in my note-book. In the former case the veins fell backward as well as forward, beu.„ 
vertical through the central portion of the curve. In fig. 13 the posrtiorr o e vm s 
varies in a very short distance from the vertical to the horizontal. 
I found thit the portions of ice which showed the phenomena, formred when seen 
from a point of view sufficiently commanding, a part of a system of crumples or pro.u- 
beranees which swept round the base of the fall, between the morarrre whrch descends 
along it from the Jardin, and its highest lateral morarne. 1 have already referre ^ - 
protuberarrces which sweep across the Strahleck branch of the Lower " 
cier, and of those of the glacier of the Rhone: those to which I now refer were t, 
same cliaracter. i 
Right and left from the position where the crumples were mos pronoun ^ 
gradually became subdued, shading off to a mere undulatmg sur ace , le si ‘ 
crevasse intersecting this surface longitudinally presented the stiuctiiia anaUj, 
shown in fig. 14. It will be observed that the directions of the veins change in accoid- 
ance with the undulations of the surface. 
Supposing the squeezing of the mass to become so violent that le gen e u c ^ 
shall become steep crumples, the deviation of the structure 
would, of course, be augmented. This prepares us to understand the exact jhie <■ 
observed at the base of the Talefre cascade. Fig. 15 represents a series 
following each other in succession at the place referred to ; at t le ase o eac i 
a vein oLute ice, «, wedged into the mass. This interrupted the continuity of u 
structure ; the abrupt change in its dhection at opposite sides of the white band b 
as shown in the figure, in every case observed. 
I found that the width of the seams was exceedingly irregular, laning. 
