In Mangaia, a Polynesian island, religious and civil authority were lodged in separate hands, spiritual functions being discharged by a line of hereditary kings, while the temporal government was entrusted from time to time to a victorious war-chief, whose investiture, however, had to be completed by the king. Similarly in Tonga, besides the civil king whose right to the throne was partly hereditary and partly derived from his warlike reputation and the number of his fighting men, there was a great divine chief who ranked above the king and the other chiefs in virtue of his supposed descent from one of the chief gods. Once a year the first-fruits of the ground were offered to him at a solemn ceremony, and it was believed that if these offerings were not made the vengeance of the gods would fall in a signal manner on the people. Peculiar forms of speech, such as were applied to no one else, were used in speaking of him, and everything that he chanced to touch became sacred or tabooed. When he and the king met, the monarch had to sit down on the ground in token of respect until his holiness had passed by. Yet though he enjoyed the highest veneration by reason of his divine origin, this sacred personage possessed no political authority, and if he ventured to meddle with affairs of state it was at the risk of receiving a rebuff from the king, to whom the real power belonged, and who finally succeeded in ridding himself of his spiritual rival. In some parts of Western Africa two kings reign side by side, a fetish or religious king and a civil king, but the fetish king is really supreme. He controls the weather and so forth, and can put a stop to everything. When he lays his red staff on the ground, no one may pass that way. This division of power between a sacred and a secular ruler is to be met with wherever the true negro culture has been left unmolested, but where the negro form of society has been disturbed, as in Dahomey and Ashantee, there is a tendency to consolidate the two powers in a single king.