AND TRIAS OF CENTRAL EUROPE, - 393 
district between Kisleben and Mansfeld, in which a relation between 
the Dyas and Trias at the eastern end of the Hartz region is shown, 
very similar to that which exists in Saxony, as I have shown 
above. 
3. North Thuringia.—Having spent some time in this district last 
summer, with Hisenach as a centre, I have seen a good number 
of sections of both the Dyas and Trias around the margin of the 
Thiringerwald. One of the best is that furnished by the dolomite 
ridge known as Gopelskuppe, which extends in a N.W. to S.E. 
direction for about an English mile near the town of Eisenach and 
forms the end of the section given at p. 334 of ‘Siluria.’ The 
dolomite strata form the ridge of the hill from end to end, and 
there is no capping of the hill with Bunter strata. In the 
accompanying drawing (fig. 9) a transverse section of the hill is 
shown, the observations on which the section is based being made 
from three quarries and a road-cutting over the hill. 
Fig. 9.—Section across Gopelskuppe, near Hisenach. 
B. Buntersandstein, much contorted and dislocated, containing in some of its 
beds fragments of the strata Z, and Z,. At the east end of the hill its 
junction with the Zechstein dolomites is seen. 
Z,. Dolomite, massively-bedded strata full of remains of Polyzoa. 
Z,. Winely-brecciated beds passing up into Z,. 
Z,. Coarse grey conglomerate passing down into R. 
R. Upper Rothliegende conglomerates of the Wartburg, &c. 
* Breccia at base of B, lying upon the eroded surface of Z,, containing (1) 
angular weathered fragments of Z,, (2) smaller fragments of strata of the 
horizons Z,, Z,. 
=Grauliegende . 
The conglomeratic series R, Z,, Z, is only a local variation of the 
Upper Rothliegende, which is seen in such enormous proportions 
about the Wartburg and the Marienthal. The strata marked R are 
of the predominant reddish colour ; but those marked Z, and Z, are 
finer and more stratified, and the matrix in which the fragments 
(porphyritic granite, quartz, schists, &c.) are included is of a grey 
ashy nature, largely derived no doubt from the tuffs associated with 
the quartz-porphyries and felsites of the neighbouring Palseozoic 
land. I¢ is this local variation of the Upper Rothliegende to which 
the name “ Grauliegende ”’ is correctly applied. In a quarry further 
