300 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Mar. 4, 



It seems to me, therefore, that the term Roth-todt-liegende, which 

 was first simply applied to the pebbly unproductive rock beneath the 

 Zechstein and Kupferschiefer, ought no longer to be applied to such 

 a diversified series of deposits of various colours and of very different 

 lithological structure, and which contain copper- ores and many fossils. 



Let me here state, that true Carboniferous rocks, with coal, as 

 worked in the north-eastern part of the territory under consideration, 

 crop out unconformably from beneath the conglomerate and bottom- 

 beds of this Permian series. 



But to call attention to the tract which I last examined. After 

 passing an outlier of old and crystalline rocks to the north-west of 

 Koniginhof, we first halted at the Station of Falgendorf, to the west 

 of which we made an examination of the harder sandstones of Alt 

 Paka, through alternations of red sandstone, mapped as arkose by 

 M. Jokely, and which are overlain, in a fine escarpment, by a zone of 

 melaphyr and amygdaloid. The latter is followed by very hard 

 cherty sandstone, and then surmounted by the softer red and greenish 

 sandstone and marls of Falgendorf, which form the upper members 

 of the series. As all these strata are inclined to the N.E., and had 

 been thrown into undulations, a reversed dip might naturally be ex- 

 pected to occur where these deposits approached the chain of the 

 older rocks of the Eiesengebirge, to which we were travelling. 



Such proved to be the case. After passing certain masses of 

 porphyry and amygdaloid, and on travelling to the N.W., we met 

 with extensive masses of marls or shales with red sandstones and 

 marls, occasionally greenish and whitish, which at Liebestadtl* as- 

 sumed a steady or reversed dip to the S.E., or away from the older 

 rocks of the Eiesengebirge. Between Liebestadtl and Semil the rail- 

 road lays open so clear a descending section of the whole group, from 

 the overlying red marls and sandstones to the underlying conglo- 

 merates which repose on the older slaty rocks, that, after fixing our 

 quarters at Semil, my companion and myself re-examined on foot 

 nearly all the intervening cuttings as laid open by the railroad, and 

 also made excursions to the east of the little town of Semil. 



The result, as exhibited in the accompanying section, is simply 

 offered to convey a clear general idea of the succession; it being 

 understood that in the midway portion of the distance the continuity 

 of the order is not well exposed. 



The following is the descending order of the strata : — 



1. Red marls and traces of limestone, with micaceous sandstones, 

 in parts spotted, in parts flaggy. These beds are of considerable 

 thickness, and dip to the S.E., being on the limits of the diagram. 



basaltic clinkstone forms tabular masses on one of the lower members, midway 

 to Liebestadtl, with the schists of the central part ; and near Falgendorf and Alt 

 Paka the melaphyr occupies the summits of hills of red marl and sandstone. 

 In my section I have only represented these igneous rocks as I saw them in 

 that particular tract. Most of these may therefore be considered as contempo- 

 raneous with the deposits. 



* At Liebestadtl we profited by the attention of the intelligent clergyman of 

 the village, the Rev. J. Marishka, who presented to me two good specimens of 

 fossil Fishes out of his little collection, and was very useful and ohliging. 



