1822. | Mr. Weaver's Geological Remarks. 93 
sengebirge ranges, as far as noticed by Von Raumer, fora dis- 
tance of about 40 miles, from Walkersdorf, between Lauban and 
Bunzlau on the NW., to beyond Bolkenhayn on the SE., where it 
terminates. Jt appears disposed in the form of a trough in a pri- 
mary slaty tract, by which it is encompassed on every side, 
except on the greater part of the northern, where it is overlaid 
‘by the quadersandstone formation. The dip appears to conform 
to the indentations of this trough, at angles varying between 30° 
and 50°. The predominant rock is the red sandstone, but beds 
of compact limestone, of reddish and yellowish-grey colours, are 
not unfrequent in it. The sandstone alternates also with felspar 
porphyry, claystone porphyry, basaltic trap, and amygdaloid. 
Only one slight trace of coal has been observed in it, and Von 
Raumer, in his general view of this tract, no where remarked any 
organic remains. It is referred by Von Buch to the old red 
sandstone formation (Geog. Beob. vol. i. p. 77, 78). 
The preceding statements have, I trust, proved ; ]. The iden- 
tity of the old red sandstone of Werner, and that of the British 
Isles ; 2. That the rothe todtliegende formation of that naturalist 
is the representative of the carboniferous series ; and 3. That in 
the details of that series in Germany, we perceive the occasional 
absence ofa particular member, and various states of association, 
in the same manner as they are to be found in Britain, but no in- 
version of the general order. 
These positions being thus established, in what sense can the 
rothe todtliegende be said to be the same as the new conglome- 
rate? I do not know any, except by a misapplication of terms. 
The weissliegende of Germany, which in all its relations of 
position, composition, and association, perfectly corresponds 
with the new conglomerate, has been repeatedly called rothe 
todtliegende by Voigt and other writers, down to the latest 
period, who, considering it as the uppermost bed of that series, 
have, without due attention to their different characteristics, 
confounded the two together. This fact is insisted on by Freies- 
leben, to whom we owe the clear exposition of this error (vol. in. 
p. 239)* ; an error that might readily be committed in the Forest 
of Thuringia in particular, where the new conglomerate (the 
weissliegende of Freiesleben) is mostly of a siliceous character 
and reddish hue, nearly resembling in aspect the rothe todtlie- 
gende ; and as the latter is there in frequent association with trap 
and porphyry, and commonly supports the new conglomerate, the 
* A somewhat similar error- prevailed in England at no distant period, for proof of 
which it may be sufficient to refer to Townsend’s work, ‘* The Character of Moses vin- 
dicated.” 1813, See vol. i. p. 154, et seq. 
