These, then, are the necessary offices, which may be summed up as follows: offices concerned with matters of religion, with war, with the revenue and expen diture, with the market, with the city, with the harbours, with the country; also with the courts of law, with the records of contracts, with execution of sentences, with custody of prisoners, with audits and scrutinies and accounts of magistrates; lastly, there are those which preside over the public deliberations of the state.