78 PETEIFACTIONS AND THEIR TEACHINGS. CHAP. II. 



group of Pentacrinites, upwards of thirty in number, in the 

 most graceful attitudes, as if the creatures were sporting in 

 their native element : a matchless specimen. 



Apiocrinites. In the lowermost compartment there are 

 choice examples of the Bradford Encrinite (Apiocrinites 

 Parkinsoni), collected by the late Channing Pearce, Esq. A 

 recent Pentacrinus caput medusae from the West Indies, is 

 placed in this case for comparison with the fossil remains. 

 On the right-hand shelf are fossil Starfishes of the genera 

 Aster ias, Goniaster, Amphiura, Comatida, &c. 



Lily Encrinite. On the left there are examples of various 

 genera of Crinoidea, viz. Eugeniacrinites, Cyathocrinites, 

 Apiocrinites (A. Prattii, from the Author's collection), 

 Encrinus Townsendi; and of the beautiful Lily Encrinite 

 (E. liliiformis), from the Muschelkalk of Brunswick. 



On the uppermost shelf are some fine specimens of casts 

 of Crinoideal stems (commonly called screw or pulley-stones), 

 in chert ; from the mountain limestone of Derbyshire. 



MINERALS. 



TABLE CASE 1. [54.] Contains the sulphates of lime. Selenite or 

 sparry gypsum, from Montmartre, Bex, Oxford, &c. ; anhydrite ; bar- 

 diglione ; and tripe-stone, a fibrous compact variety. 



On the table near the window, beneath a glass shade, there is a re- 

 markably fine group of selenitic crystals, from Kemhardsbrunn, Saxe 

 Coburg: presented by his H. K. H. Prince Albert. 



2. [7.] Sulphuret of copper, copper glance, or vitreous copper. 



In this case are specimens of the so-called " Frankenberg corn-ears," 

 which are fossil vegetables mineralized by vitreous and grey copper ; 

 sulphuret of copper and iron ; copper pyrites ; variegated copper ore ; 

 Tennantite. 



3. [53.] Sulphates of barytes and strontian. Celestine, &c. 



4. [8.] Sulphuret of lead or galena. 



5. [52.] Nitrates and sulphates. Sulphates of baryta or heavy spar ; 

 Bolognese spar ; ketten-spaths or chain-spar, from the Hartz ; cawk, of 

 Derbyshire ; hepatite or fetid baroselenite ; wolnyne, from Muzsay in 

 Hungary. 



6. [9.] Sulphurets of bismuth, of copper and bismuth, of copper 

 and tin, or tin pyrites. 



The remainder of this case is filled with sulphuret of mercury, or 

 cinnabar. 



7. [51.] Green carbonates of copper. Fine and rare varieties of 

 malachite ; compact malachite, from the Ural Mountains. 



8. [10.] Sulphuret of silver; common silver glance, massive, crystal- 

 lized, &c. Sulphurets of antimony. 



9. [50.] Carbonates of copper; copper azure, &c. 



