%' 



M. DE HoFP's Geological 



to a species of crocodile, and which is now at the royal col- 

 lection of Berlin. Proceeding eastward, the marno-bitumi- 

 nous schist is found on the northern slope, as far as Saalfeld ; 

 on the Franconian side, only to Flohe and Goldiauter. The 

 metallic richness of this schist is very variable ; it most 

 frequently contains copper pyrites, sometimes grey copper, 

 and carbonate of copper, at others only sulphuret of iron ; 

 in some places galena and little or no copper ; in others, it 

 contains no ores at all. 



The marno-bituminous schist is generally covered by 

 zechstein, which often contains gryphites, more rarely corals, 

 and very rarely the points of belemnites. Gryphites are 

 met with also near Schmerbach, with terebratula;, in the 

 tipper laminse of the schist bed, the inferior part of which 

 contains the impressions of fish ; sometimes even the same 

 laminae contain the gryphites and the impressions. If the 

 latter, as has been said, are freshwater fish, the presence of 



Magnesian limestone . . < 



. Ancient limestone (alterer kalkstein) con- 

 taining: 



a. Gypsum and fetid limestone (gyps, stink- 

 stein) 



b. Fetid limestone (stinkstein) with 

 Calcareous iron ore (kalkeisenstein) 

 Friable marl (asche) 

 Limestone, known by the various names of 



bohlenkalkstein, rauhkalk, and rauch- 

 wacke ; 



c. Compact marly limestone (zechstein) 



d. Marly schist (mergelschiefer) 

 The roof of the copper slate (dach) 

 The bed of copper slate (kupferschiefer 



floetz) 

 The immediate floor of greyish white sand- 

 stone (weiss liegende); 



. Ancient sandstone (alteres sandstein ge- 



birge) comprising : 

 New red Conglomerate'^ The inferior floor of red sandstone (rothe 



liegende) called floor in respect to the 



copper slate ; 

 Coal measures The coal measures (steinkohlen gebirge). 



{ 



For further information respecting the connexion of the alpine and 

 magnesian limestones, with full details of the latter, I refer the reader to 

 that excellent work, Messrs. Conybeare and Phillips' Outlines of the 

 Geology of England and Wales. 



