According to the statements of the Hebrews the taxes amounted to a fifth of the produce,[264] and hence all the farmers could with justice be considered leaseholders, or at any rate as having copyhold estates. It is expressly observed that only the farms of the soldiers were free from taxes,[265] and that the land which was taxed for the temples contributed nothing to Pharaoh.[266] At the same time it is easily intelligible that the piety of the subjects provided additional incomes for the priests, and that, so far as it was possible to make any arrangements of the kind, land and revenues were presented to the temples.[267] The maintenance which they derived from the incomes and contributions of the temple-lands, in corn, wine, and animals for sacrifice, enabled the priests to live for their religious duties, for the complete performance of their customs in regard to purification and food, and for the study of the holy scriptures. They were divided into various classes and corporations. In every temple there was one upper priest,--the head of the temple--the prophet,[268] a temple scribe, who was especially skilled in writing, and managed the temple property, a chamberlain, who took care of the clothing of the images, the sacrifices, and the ritual, an astronomer, who had to observe the heavens, and a minstrel. In the processions the prophet carried the jar of water for purifications; the chamberlain carried the cubit of justice and a basin for sprinkling water; the scribe can be recognised by the feather in his head-dress, the roll of books in one hand, and the pen in the other; the astronomer by an hour-glass and a palm branch, the symbol of the seasons among the Egyptians. These higher classes of the priesthood were followed by the lower; the pastophors, who carried the images in the processions, and practised medicine, the attendants, male and female ("the nurses"), of the sacred animals, the persons whose duty it was to select and seal the animals for sacrifice, the embalmers, and lastly, the temple-servants, who were responsible for the purifications. The first sanctuaries in Egypt were the temples of Ammon at Thebes, of Ptah at Memphis, and of Ra at Heliopolis. The colleges at these temples were the most important centres of priestly life and doctrine. So long as Thebes was the metropolis of the kingdom, the high priest of Ammon at Thebes was the first priest in the land. Herodotus tells us from the lips of the priests of Thebes that the office of high priest descended from father to son, and Diodorus maintains that the same was the case with all the officers of the temples.[269] These statements are contradicted by the inscriptions. They mention five places in the temples through which all "fifth priests" must pass. From a memorial stone of a priest, Bakenchunsu, we learn that for fifteen years he was third priest, and for twelve years second priest of Ammon at Thebes;