With the Be-Chuanas, whose territory extends from the Orange river to Lake Ngami and includes Basutoland with a great part of the Transvaal, we again meet a people at the totemic stage of culture. Here the eponymous heroes of the Zulu-Xosas are replaced by baboons, fishes, elephants, and other animals from which the various tribal groups claim descent. The animal in question is called the _siboko_ of the tribe and is held in especial reverence, members (as a rule) refraining from killing or eating it. Many tribes take their name from their _siboko_, thus the Ba-Tlapin, "they of the fish," Ba-Kuena, "they of the crocodile." The _siboko_ of the Ba-Rolong, who as a tribe are accomplished smiths, is not an animal, but the metal iron[262]. With a section of the great Be-Chuana family, the Ba-Suto, and the Ba-Rotse is connected one of the most remarkable episodes in the turbulent history of the South African peoples during the nineteenth century. Many years ago an offshoot of the Ba-Rotse migrated to the Middle Zambesi above the Victoria Falls, where they founded a powerful state, the "Barotse (Marotse) Empire," which despite a temporary eclipse still exists as a British protectorate. The eclipse was caused by another migration northwards of a great body of Ma-Kololo, a branch of the Ba-Suto, who under the renowned chief Sebituane reached the Zambesi about 1835 and overthrew the Barotse dynasty, reducing the natives to a state of servitude. But after the death of Sebituane's successor, Livingstone's Sekeletu, the Ba-Rotse, taking advantage of their oppressors' dynastic rivalries, suddenly revolted, and after exterminating the Ma-Kololo almost to the last man, reconstituted the empire on a stronger footing than ever. It now comprises an area of some 250,000 square miles between the Chobe and the Kafukwe affluents[263], with a population vaguely estimated at over 1,000,000, including the savage Ba-Shukulumbwe tribes of the Kafukwe basin reduced in 1891[264]. Yet, short as was the Ma-Kololo rule (1835-70), it was long enough to impose their language on the vanquished Ba-Rotse[265]. Hence the curious phenomenon now witnessed about the Middle Zambesi, where the Ma-Kololo have disappeared, while their Sesuto speech remains the common medium of intercourse throughout the Barotse empire. How often have analogous shiftings and dislocations taken place in the course of ages in other parts of the world! And in the light of such lessons how cautious ethnographists should be in arguing from speech to race, and drawing conclusions from these or similar surface relations!