Order I.
Earth-Salts—Double Salts.
(Combinations of acids with earths.)
Fam. 1-4. Earthy-acids or Fluoric-acid earths; here also belong Bromic, Iodic, and Cyanic acids.
5. Salt or Boracic-acid.
6. Inflammable or Sulphuric-acid—Alum, Sulphate of magnesia.
7. Metallic or Arsenic-acid.
8. Water or Hydrochloric-acid—the earths Barytes, Strontian, and Lime; Murias ammoniæ, Chloride of Calcium.
9. Air or Nitric-acid—Strontium, Nitrate of lime.
10. Fire or Carbonic-acid—Vegetable-acid earths.