DURING a residence of nine months on the Ufipa Plateau, the writer had opportunity for examining the gneissose rocks and associated schists near the village of Namwele, locally well known as the centre of coal-bearing beds, with results summarized in the following note. The position—about 7° 50′ S. lat. and 31° 30′ E. long.—is S.E. of the central part of Lake Tanganyika, and not far from the western edge of the Rukwa Trough.