I visited this mound in company with Mr. Sam, who interpreted the name to be that of the gambogefruit. We descended, as we had ascended, by the stamping-battery, crossed the bridge, and then struck northwards, over the third hillock, to No. 4. Unlike Crocker's Reef, Aji Bipa does not show visible gold; its other peculiarities will best be explained by the report I wrote on the spot. This property is situated near Crockerville and can always be easily reached from that place. In fact, the southern boundary marches with the northern limit of the Crockerville estate. The rich gold-bearing lode is situated on the western slope of the hill, and can be seen in all the three shafts which have been sunk. The formation of the hill seems in many respects to correspond with the Lingula flags at and near Clogau, Dolgelli, and Gogafau. This formation is practically the same as that of the range of hills on which the concessions of the Gold Coast Mining Company, of the African Gold Coast Mining Company, of the Effuenta Company, of the Mines d'Or d'Aboassu (Abosu), and the Tamsu concessions are situated, and also as that of Tebribi Hill; but each of the three areas has its own marked features. In all the rocks are talcose and show a sort of conglomerate of quartz pebbles, in some cases water-worn and in others angular, bedded in a mixture of quartz and granite detritus. This has in the three areas undergone varying degrees of pressure, and has been upheaved at different angles. In some cases the pressure and heat have been so great that the rock assumes a distinctly gneissic character.