18 



THE GASES IN ROCKS. 



TABLE 8 Continued. 



> Carbonated. 



2 No. 59. Analysis (p. 589) : SiO 2 , 74.45; ALOa, 14.72; FeO, 0.56; MnO, 0.28; CaO, 0.38; MgO, 0.37; K 2 O, 4.53; 

 oO, 3.97 ; H 2 O, 0.66 ; P 2 O 5 , 0.01 ; 100.38. 



