310 ALKALINE SALTS. ORDER II.—ALKALINE SALTS. This Order contains all the Natural Salts having an earthy basis. 1 hey are more or less soluble in water: their tastes are alkaline, saline, or bitter; the predomi nating colour is white ; and they arc light, I '■•(O. !• Genus I.—Salts of Soda. Of this genus there are five species, viz. Natron, Glau ber Sait, Reussite, Rock-Salt, and Borax. 1. Natron, or Soda. Natiirliches Mineral Alkali, Werner. This species is divided into two subspecies, viz. Com mon Natron, and Radiated Natron. First