324 Mr. Weaver on the [May, 



In the Forest ofThuringia, p. 179—191. 



III. Occurrence and Distribution of the Formation in general. 

 Vorkommen und Verbreitung, p. 191 — 210. 



In Mannsfeld, extending into Anhalt, p. 191 — 193. 



In the Circle of the Saale, 194—195. 



In Sangerhausen and Stollberg, 195 — 197. 



In Kiffh'auser, Bottendorf, and Gera, 198—200. 



In the Forest ofThuringia, 200—206. 



In other parts of Germany, Riegelsdorf, Hesse, Wirtemberg, 

 Mark, Silesia, Bohemia, 207—208. 



In countries beyond Germany, 208 — 210. 



Appendices and Additions to vol. iv. p. 210 — 392. 



1 . On transition clayslate and greywacke tracts in the Hartz, 

 Neustadt, &c.p. 213—228. 



2. Geological and mining observations on the collieries at 

 Opperode, Meisdorf, &c. in Anhalt-Bernburg, and at Wettin, 

 Lbbegun, Petersberge,&c. in the Circle of the Saale, p. 229 — 268. 



3. Letters relating to the shell limestone, new red sandstone, 

 and lower limestone formations, described in the three first 

 volumes, p. 269—294. 



4. Additional observations on the shell limestone, new red 

 sandstone, lower limestone, and rothetodtliegende formations, 

 p. 295—392." 



With this Synoptical Table for a guide, and Freiesleben's descrip- 

 tions in illustration, it has been a great surprise to me that any 

 one should ever have doubted that the older sandstone, or rothe- 

 todtliegende formation of the Germans, was the representative 

 of the carboniferous series.* 



After the details into which I have formerly entered, the more 

 immediate remarks required on the preceding synoptical table 

 may be confined,jtf/\s£, to the rothliegende separately considered ; 

 and secondly, to the nature of its connexion with the coal form- 

 ation. 



1. Now with respect to the rothliegende considered separately, 



* It may be useful in this place to refer to the origin of the expression rothetodtlie- 

 gende, or red dead licr. It has been applied to the carboniferous series in general for 

 this reason ; that in some quarters the coal formation associated with red sandstone as one 

 of its members ; in others, the old red sandstone itself (both more or less strongly cha- 

 racterised by the diffusion of red oxide of iron), form the immediate support of the 

 weissliegende or new conglomerate, and bituminous marl shale, the two former thus 

 acting in relation to the two latter as the red dead licr ; that is, as the red substratum, 

 comparatively barren of metal, in contradistinction to the superincumbent new conglo- 

 merate and bituminous marl shale, both of which are abundantly metalliferous. 



I may here repeat the remark, which I made in a former paper {Annals of Philosophy, 

 January, 1823), that the expressions todtliegende, rothliegende, and rothetodtliegende, 

 are synonymous, the two former being frequently employed fur the sake of brevity. 



