Among the American Indians the furthest advance towards civilisation was made under the monarchical and theocratic governments of Mexico and Peru; but we know too little of the early history of these countries to say whether the predecessors of their deified kings were medicine-men or not. Perhaps a trace of such a succession may be detected in the oath which the Mexican kings, when they mounted the throne, swore that they would make the sun to shine, the clouds to give rain, the rivers to flow, and the earth to bring forth fruits in abundance. Certainly, in aboriginal America the sorcerer or medicine-man, surrounded by a halo of mystery and an atmosphere of awe, was a personage of great influence and importance, and he may well have developed into a chief or king in many tribes, though positive evidence of such a development appears to be lacking. Thus Catlin tells us that in North America the medicine-men "are valued as dignitaries in the tribe, and the greatest respect is paid to them by the whole community; not only for their skill in their _materia medica,_ but more especially for their tact in magic and mysteries, in which they all deal to a very great extent. . . . In all tribes their doctors are conjurers--are magicians--are sooth-sayers, and I had like to have said high-priests, inasmuch as they superintend and conduct all their religious ceremonies; they are looked upon by all as oracles of the nation. In all councils of war and peace, they have a seat with the chiefs, are regularly consulted before any public step is taken, and the greatest deference and respect is paid to their opinions." Similarly in California "the shaman was, and still is, perhaps the most important individual among the Maidu. In the absence of any definite system of government, the word of a shaman has great weight: as a class they are regarded with much awe, and as a rule are obeyed much more than the chief."