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gentleman, in particular, he has recently worked out many details, 

 which it is hoped may rectify certain errors in the great Geological 

 Map of Germany, published by Schropp of Berlin. 



Moravia has been in part described by Andre, Von Albin Hein- 

 rich, Von Lill, Von Oeynhausen, and Beudant ; but the two last- 

 mentioned writers, it is stated, have not visited the country. 



This region is made up of the union of three principal chains 

 of hills, the Eastern or Bohmerwaldgebirge, the Sudeten or Silesian 

 mountains, and the Western Carpathians, the contact of the two 

 first of which is hidden by a red sandstone of the coal-measures, and 

 green-chalk-marl. 



The hilly region called the Gesenke, consists of grauwacke, and 

 extends across Moravia to near the Bohemian range. The Gesenke 

 is separated from the Carpathians by the tertiary and alluvial val- 

 leys of the Upper Oder. 



The more ancient and longitudinal valleys, in Moravia, have a 

 general direction from W.S.W. to E.N.E. ; and are, with some few 

 exceptions, cut through transversely by the present streams. 



In the part of Hungary and Gallicia indicated on this Map, the 

 rivers on the contrary flow for the most part in longitudinal valleys, 

 parallel to the Carpathians, as the Nitra, Gran, Vistula, and the 

 Waag, although the latter for a certain space runs through a trans- 

 versal rent in primary rocks. 



In the Western groups are numerous Scotch and Scandina- 

 vian minerals. Many of the oldest stratified rocks are crossed 

 by large, dyke-like, elliptic bodies, running from south-west to 

 north-east. The respective characters of the primary Sudeten 

 and Tatra mountains are then described. The grauwacke dis- 

 tricts are stated to differ little from those of the Hartz and the 

 South of Scotland ; and the caverns which abound in the blueish gray 

 limestone, subordinate to this formation, may, the author conceives, 

 have been produced by the acidulous waters which are still so 

 abundant in the country, as at Gefatter Loch, &c. This old lime- 

 stone formation abounds in Madrepores, Caryophyllia, Encrinites, 

 and Orthoceratites. 



The author is of opinion, that the sienite was erupted during the 

 period between the formation of the grauwacke, and the primary 

 chain of Bohemia. This sienite has very various characters, being 

 sometimes porphyritic, at other times associated with talcose and 

 quartzose rocks. &c. 



Above the sienite lies a coarse, red conglomerate, which is con- 

 nected in Bohemia with a great deposit of red sandstone with 

 coal. Here the author corrects an error in Schropp's Map, where 

 the district is coloured as new red sandstone; instead of which, he 

 considers it to be of the age of the Scotch red coal-grits. 



The other coal deposit of the basin of the Oder is in aluminous 

 and bituminous slate, with gray sandstone, and many vegetable im- 

 pressions, but without red sandstone. 



The Zechstein is wholly absent in these parts, and the true red 

 marl is very scarce. 



