00 On Crystallography. 



Names of the Substances. Form of the integrant Molecule. 



Oxidated uranium Prism with square bases 



Oxidated titanium Isosceles-reciangle-triangular 



prism. 



•* With rectangular bases. 



Cymophane Prism with rectangular basest 



Euclase . Ditto 



Peridot Ditto 



Prehnite Ditto 



Stilbite Diito 



Ferruginated scheelin .... Ditto 



*** With rhombic bases. 



Sulphated barytes Scalene - rectangle- triangular 



prism 



Sulphated strontiari Ditto 



Topaz Prism with rhombic bases 



Staurotide Isosceles -rectangle-triangular 



prism 



Made .......... Uncertain 



Mica , . . . . . Prism with rhombic bases* 



Talc Ditto 



Arsenical iron Ditto 



Sulphurated molybdenum . Ditto 

 Siliceo-calcareous titanium Ditto. 



***# With oblique-angled parallelogram bases. 



Sulphated lime Prism with oblique - angled 



parallelogram bases 



Epidote Prism with oblique-angled 



parallelogram bases 

 Axinite Ditto. 



2. OBLiaUE PRISM. 



* With rectangled bases. 



Borated soda Prism with rectangled bases* 



** With rhombic bases* 



Amphibole Prism with rhombic bases 



Actinote Ditto 



Pyroxene Oblique triangular prism 



Grammatite Prism with rhombic bases. 



*** With oblique-angled parallelogram bases. 



Feldspar Prism with oblique angled 



parallelogram bases 



Disthene 



