whoever they are, whether strangers or slaves, who have the charge on behalf of the citizens, shall produce to the strangers the portion which falls to them, in the first place, a twelfth portion of the corn—­the stranger shall purchase corn for the whole month, and other cereals, on the first market day; and on the tenth day of the month the one party shall sell, and the other buy, liquids sufficient to last during the whole month; and on the twenty-third day there shall be a sale of animals by those who are willing to sell to the people who want to buy, and of implements and other things which husbandmen sell, (such as skins and all kinds of clothing, either woven or made of felt and other goods of the same sort) and which strangers are compelled to buy and purchase of others.  As to the retail trade in these things, whether of barley or wheat set apart for meal and flour, or any other kind of food, no one shall sell them to citizens or their slaves, nor shall any one buy of a citizen; but let the stranger sell them in the market of strangers, to artisans and their slaves, making an exchange of wine and food, which is commonly called retail trade.  And butchers shall offer for sale parts of dismembered animals to the strangers, and artisans, and their servants.  Let any stranger who likes buy fuel from day to day wholesale, from those who have the care of it in the country, and let him sell to the strangers as much as he pleases and when he pleases.  As to other goods and implements which are likely to be wanted, they shall sell them in the common market, at any place which the guardians of the law and the wardens of the market and city, choosing according to their judgment, shall determine; at such places they shall exchange money for goods, and goods for money, neither party giving credit to the other; and he who gives credit must be satisfied, whether he obtain his money or not, for in such exchanges he will not be protected by law.  But whenever property has been bought or sold, greater in quantity or value than is allowed by the law, which has determined within what limits a man may increase and diminish his possessions, let the excess be registered in the books of the guardians of the law; or in case of diminution, let there be an erasure made.  And let the same rule be observed about the registration of the property of the metics.  Any one who likes may come and be a metic on certain conditions; a foreigner, if he likes, and is able to settle, may dwell in the land, but he must practise an art, and not abide more than twenty years from the time at which he has registered himself; and he shall pay no sojourner’s tax, however small, except good conduct, nor any other tax for buying and selling.  But when the twenty years have expired, he shall take his property with him and depart.  And if in the course of these years he should chance to distinguish himself by any considerable benefit which he confers on the state, and he thinks that he can persuade the council and assembly, either to grant