ERRATA. 



5, line 18, for "left" read "right." 



11, 

 24, 

 36, 

 42, 



45, 



41, 

 2, 



"Macouria" read " Makauria." 

 "felstones" read "felsite." 

 "granitic-gneiss" read "granitite-gneiss. 

 "Granite-gneiss" read "Granitite-gneiss.' 

 79, in tiie 3rd column of the 2nd table, 

 line 2, for "3.9" read "11.8." 



"11.8" read "3.9." 



"150" read "180." 



"sedimentary" read "sedentary." 



"Is." read " £1 10." 



107, 

 215, 

 224, 



5, 



30, 



4, 



5, 



Plate VI 1, for "Granitite" read "Granite." 



