﻿Quart. Journ. Geol. Soc. Vol. LXI, Pl. XLIII 



Fig. 1 x 15 Diam. 



Fig. 2 x 15 diam. 



^22fc 



GNEISSES FROM THE CONGO FREE STATE. 



Photomicro. T. C. H. Bemrose, Collo. 



