108 T. L. WATSON — WEATHERING OF GRANITIC ROCKS OP GEORGIA 



The losses for the entire rock, based on the three assumptively in- 

 soluble constituents, are tabulated below for convenience of comparison : 



Table. 



Fe,03 

 constant. 



AI2O3 

 constant. 



Al.A+Fe.A 

 constant. 



I 



II 



Ill 



( 8.14 \ 

 1 44.52 i 



14.56 



f 7.40 ■), 

 \ 33.63 i 



7.78 



7.92 



38.48 



f 43.60 \ 

 \ 51.64 i 



5.59 



34.04 



29.88 



21.10 



7.68 



f 6.73 1 

 1 34.29 r 



8.43 



7.92 



IV 





33.72 



V 



VI 



VII 



J 61.85 \ 



\ 71.82 r 



15.84 



f 44.41 \ 

 1 52.90 i 



6.65 



34.04 



VIII 



35.07 

 26.49 



30.33 



IX 



21.61 



X 



7.08 









< 



