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GEOLOGICAL MEMOIRS. 



Strata. 



Aix-la-Chapelle, 

 Maestricht, 

 Verviers. 



Westphalia. 



Hanover. 



The Hartz. 



Upper Quader- 

 sandstein. 



Aix-la-Chapelle. 

 Verviers. 



Haltern. 

 Hiils, near 

 Rothenfelde. 



Goslar ? 



Regenstein, Teu- 

 felsmauer, Ge- 

 gensteine, Hin- 

 terberge, Klus- 

 berge, &c. 



Upper 

 Quadermergel. 



Tuff-chalk of 

 Maestricht. 

 Upper white 

 Chalk with Fire- 

 stone. 

 Chalk Marl with- 

 out Firestone. 

 Greensand or 

 Chlorite- chalk. 



Marly Sandstone 

 of the Baum- 

 berg near Coes- 

 feld. 



Grey and yellow- 

 ish Chalk-marl. 



Greensand. 



Sudmerberg- 

 conglomerate. 

 Green Sandy 



Marl. 

 Chalk-marl. 



Sudmerberg- 

 conglomerate, 

 Plattenbergge- 

 stein. Green 

 Sandy Marl and 

 Green Sandstone. 

 Chalk-marl. 



Middle 

 Quadermergel. 





Upper Flags, 

 mostly Chalk- 

 flags. 

 Greensand and 

 Greensand-con- 

 glomerate. 



Chalk-flags. 



Chalk-flags. 



Lower 

 Quadermergel. 





Lower Flags 

 (Marl-flags and 

 VariegatedMarl). 



Greensand. 



Marl-flags and 

 Variegated Marl. 



Greensand. 



Marl-flags and 

 Variegated Marl. 



Greensand. 



Lower Quader- 

 sand stein. 





In the Teutoburg 

 Forest. 



Greensand and 

 Grey Sandstone. 



Freestone. 



Greensand and 

 Green Sandstone. 



Freestone. 



Hils-clay. 





Grafinghagen in 

 the Teutoburg 

 Forest. 



Deister, in 

 the Hils-valley 

 near Hildes- 

 heim, near 

 Schandelahe in 

 Brunswick, &c. 





