350 ON THE PRIMITIVE FORM OF CRYSTALS. 



Eoracic Acid. Camphor. 



Succinic 4cid. Comptonite. 



Hydrate of Barytes. Electric Calamine. 



Super-tartrate of Potash. Lepidolite. 



Tartrate of Potash and Anti- Realgar. 



mony. Yellow Orpiment. 

 Spermaceti. 



Tessular System. 



Essonite. 

 Haiiyne. 

 Sodalite. 



Cinnamon Stone. 

 Nitrate of Lead. 

 *— — of Strontian, (octahe- 

 dral crystals.) 



Nitrate of Barytes. 



Nitrite of Lead, (certain spe- 

 cimens.) 



Muriate of Potash. 



Sulphate of Alumina and 

 Ammonia. 



XXIV. 



