334' M. Boue' on 



chain of that country ; it goes on one side towards Amberg, 

 and on tlie other into Wurtemberg, where it alternates with 

 lias. This band is more or less broad, according as tiie 

 sandstone is more or less covered by the oolite formation, 

 or more or less preserved above tlie new red sandstone ; it is 

 of considerable extent between Roth, Weissenburg, and 

 Nuremberg. 



I am only acquainted with it at present in the eastern and 

 southern parts of France ; in the first place it exists in great 

 force, according to M. von Buch, to the north of Luxem- 

 bourg, between- that town, Feltz, and Alfdorf; there are 

 three small deposites of it to the E. of Metz, one between 

 Vigy and St. Hubert, a second on the north of Bertoncourt, 

 and a third to the south of Ketange. It should be re- 

 marked that all these portions are situated in the ramifica- 

 tions of the great valley of the Moselle, on the western side 

 of which we also occasionally find the ferruginous varieties, 

 "which are even worked as hydrate of iron ore, as for example, 

 at Hayonge. Further south, I am only acquainted Avith 

 some traces of it near Vic and in the environs of Vitteaux. 

 Some fragments have been found by M, de la Jonquere, in 

 the midst of the lias of Mezieres, and other shelly varieties 

 have been discovered by M. de Beaumont, with the same 

 rock, not far from Buxweiler. 



In the Jura, the marls which are slightly sandy replace 

 the quadersandstein, and alternate with the inferior oolite 

 marls. 



In the Pyrenees, the quadersandstein forms very consi-' 

 derable strata beneath the whole band of the oolite forma- 

 tion which runs along their northern foot ; it always pre- 

 sents the same quartzose sandstones, which are more or less 

 marly, micaceous, or slaty. They contain marine organic 

 remains, and fossil vegetables; they alternate with the lower 

 part of the oolite formation, and contain traces of lignites 

 like the latter limestones. I shall content myself by men- 

 tioning as examples, the quadersandsteins on the north of 

 Navarreins, and these of St. Paul and Nalzen, in the Pays 

 de Foix, 



