THE CHEMICAL ARRANGEMENT. 297 



ras is the ferrous sulphate^ sulphate being a contraction 

 for sulpho-oxate. 



The compound salts are named by combining the names 

 of the simple salts. 



Whenever a star is prefixed to the chemical name of a 

 species, or of a group of species in the following table, no- 

 tice is given that the expression is not intended to convey 

 an idea of the atomic constitution of the species or group* 

 In such cases, the ingredients only are indicated. 



TABULAR VIEW. 



The mineralogical species constitute five Classes ; which 

 are variously subdivided into families, orders and genera. 



CLASS I. 



consists of Elements, and embraces two families, the Am- 

 phigen family, and the Oudegen family.* 



AMPHIGEN FAMILY. OUDEGEN FAMILY. 



Oxygen. Nitrogen. 



Sulphur. Arsenic. 



Carbon, &c. 



CLASS II. 



embraces Acid compounds of the Amphigen elements, 

 and includes three genera, which are named from the 



* The order of succession in the families, orders, genera and species, 

 is the electro- negative, according to the table of BERZELIUS, the most 

 electro-negative being placed first. 



