20 CATALOGUE OF PHILOSOPHICAL APPARATUS, &c. 



DIVISION B. 



PERMIAN SYSTEM. 



Drawer I. Specimens illustrating the singularly jagged structure of the sur- 

 face, and other peculiarities, of the dolomitic rocks at Bolsover, 

 Derbyshire. 



This rock, in consequence of its supposed durability, was selected 

 as the material for the Houses of Parliament, but the material 

 quarried has not answered the expectations formed of it, decaying 

 rapidly in the atmosphere of London. 



Drawer 2. Singular botryoidal concretions in the Magnesian Limestone of 

 Sunderland, Durham. 



Drawer 3 . Magnesian limestone of Durham with organic remains. 

 Some specimens are fissile and flexible. 



Drawer 4. Magnesian limestone from Germany, and Hungary. 

 Drawer 5. 

 Drawer 6. 



MESOZOIC SYSTEM. 



MUSCHELKALK, NEW RED SANDSTONE, &C. 



Drawer 7. Muschelkalk of Germany, viz. from Brunswick, Cassel, Bareuth, 



&c. 



Drawer 8. Muschelkalk with its characteristic shells, from Aarau, and Solo- 

 thurn, Switzerland. 



This rock does not exist in England, but most of the saline depo- 

 sits on the Continent are situated in it. 



Drawer 9. Salt formation of Bex, Switzerland, with the limestone that accom- 

 panies it, and the same from Hallein, Tyrol. 



Drawer 10. New red sandstone, with cobalt imbedded, from Cheshire : 

 and containing gypsum and sundry fossils, from Derbyshire. 



Drawer n. Do. with gypsum, from the neighbourhood of Bristol and Belfast. 



