Tracks of Animals in Variegated Sandstone. 257 
The net-formed pads had first led me, as already observed, to 
search for tracks ; I was, therefore, quite surprised to find them 
so rarely in connection with the foot-tracks, although occurring 
very abundantly in the same quarry. The clayey underlayer of 
the track-strata happens to be so thin here ordinarily, (}—} an 
inch,).that it perhaps on this account did not crack in drying. I 
would remark farther on one striking peculiarity of the track-slabs 
of this place; they are generally very undulatory upon the side 
Opposite the impressions, that is, the upper, and more even on the 
under. The water evidently has had more effect on the sand 
than on the tough clay. 7 
New Red Sandstone formation. 
___ At Klein-Pérthen. B. At Pélzig. 
= = 
Sandplatten. 
Rother Schutt. = 
Eisenstein. 
Schalstein 
Rater f— 
- Obere Werk- 
Se 2 bank. 
ES SS ee —— 
Schieferschutt. 
Eisenstein. 
Werkbank. — ee 
wee Thuicks 
& 4v 45 Sita 
Approximate scale_of the thickness of the strata. 
The track-reliefs occur at Pélzig and Klein-Pérthen, it is prob- 
ably only in two layers, whose particular position is indicated on 
the plate (B) by small arrows. ‘These layers belong in general to 
the middle region of the variegated sandstone formation. They 
are characterized throughout the whole district by gray, yellow, 
and even white colors; at Crossen, on the Elster, we see them 
Vol. xxaxvin1, No. 2.—Jan.~March, 1840. 33 
t 
