Through the kindness of Mr. F. W. FitzSimons, Director of the Port Elizabeth Museum, South Africa, pieces of this iron were placed at the disposal of the writer for examination and analysis. The original mass, weighing about 203 lb. (92 kg.), was found at Karee Kloof, about nine miles from Hofmeyer, Cape Province, South Africa, and was presented to the Port Elizabeth Musem by Mr. N. H. Ogilvie in 1914. From a cast which was made under the direction of Miss M. Wilman, Director of the McGregor Memorial Musemn, Kimberley, the dimensions of the mass are approximately 43 × 30 × 20 cm. It is very irregularly shaped, is pitted with ‘thumb-marks’, and is cavernous with depressions, one of which on the side shown in Pl. III, fig. 1, has dimensions of about 20 × 15 × 7½ cm.