Take wheat or barley, for instance (though the same procedure must be followed for all the other crops too, as well as for any livestock there may be for sale in each district): each twelfth part should be split proportionately into three shares, one for the citizens, one for their slaves, and the third for workmen and foreigners in general (i.e., communities of resident aliens in need of the necessities of life, and occasional visitors on some public or private business).