ANNALS CARNEGIE MUSEUM, Vol. XIII 



Plate VI. 



Fir,. I. Pcginatitu dikes near Peruiuitus, Paialuba, willi labk'lainl. indl >al_i!\' capped Ijy 



quartzitc, in the distance. 



Fk;. 2. Pegmatite dikes near Jardiiii de Serido, Rio Grande do Norte; granite hills in the 



distance. 



