324 M. Boue' on 



hausen), also disappears and only shews itself again on the 

 north in the environs of Baireuth. 



In a wordj we not only incontestably see there, the mus- 

 chelkalk prolonged along the oolite chain of this part of 

 Germany, but also the niuschelkalk placed on the borders 

 of a basin which has apparently had so much influence on 

 the nature of this limestone, that as soon as we descend into 

 itj we only see a magnesian limestone without fossils. The 

 beds of new red sandstone, near Kipfendorf, at the foot of 

 the Mahnberg, dip out of the basin to the S.E., and in the 

 basin they become nearly vertical with a dip to the N.N.E. 

 On the first parts of these beds rests a platform of true mus- 

 chelkalk, whose breadth is narrowed to a few fathoms, from 

 the 2 or 300 toises it had more north at Manchenroth ; close 

 to this, at only a few feet distance, a deposite of the mag- 

 nesian limestone is found connected with the new red sand- 

 stone. 



From the characters and anomalies of the deposite, it is 

 possible that this limestone may be found in many localities 

 where it has not yet been mentioned. It appears certain, 

 that along the Bahmerwaldgebirge, it terminates at the 

 platform of the environs of Baireuth, and that, on the other 

 side of the basin, it is prolonged with interruptions along 

 the oolite chain into Switzerland, where it still occupies 

 some space near Basle, and there constitutes the rauchgrauer 

 kalkstein of M. Merian.* It is afterwards united near 

 Befort to the narrow band which it forms at the eastern foot 

 of the Vosges, from thence to Alzey, whilst along the west- 

 ern side, from the combined observations of M. de Beau- 

 mont, M. Schmitz^ and myself, this limestone extends from 

 Lure to Vauvillers, Bourbon-les-Bains, Ligneville, Sarre- 

 bourg, and forms a great platform above the new red sand- 

 stone between Rosbach, Waldfishbach, and Forbach. It 

 even rises higher north by Loiigeville and Treves, and al- 

 ways occurs between the new red sandstone and the oolite 

 formation. 



* See Beytrage zur Geognosie, 1821. 



