THE CHEMICAL ARRANGEMENT. 



305 



Aluminic 



Hydrated 

 Aluminic tri- 



Hydrated 

 Magnesic 



Hycl rated 

 Calcic 



Hydrated 

 Strontic 

 Baric 

 Sodic 



Hydrated 

 Potassic 



Solfatarite. 

 Websterite. 



Epsom Salt. 

 Anhydrite. 

 Gypsum. 

 Celestine. 

 Heavy Spar. 

 Thenardite. 

 Glauber ite. 

 Aphthitalite. 



SECTION B. MIXED. 



Cupric & uranic 



Hydrated Johannite. 



*Ferric & magnesic 



Hydrated Botryogene. 



Ter-aluminic & potassic 



Hydrated Alum. 



Calcic & sodic Glauberite. 



*Calcic, potassic &; magnesic 



Hydrated PolyhaUite. 



APPENDIX TO GENUS I. 

 (Combination of a sulphate and an oxide.) 



^Plumbic sulphate & cupric oxide Cupreous Anglesite. 



26* 



