These tributes are collected from all the natives, Christians and infidels, in their entirety--except that in those encomiendas without instruction the encomendero does not take the fourth part of the eight reals (which equals two reals) for himself, since that encomienda has no instruction or expenses for it; but he takes them and deposits them in Manila, in a fund called "the fourths." [209] The money obtained from this source is applied to and spent in hospitals for the natives, and in other works beneficial to them, at the option of the governor. As fast as the encomiendas are supplied with instruction and religious, the collection of these fourths and their expenditure in these special works cease. Some provinces have taken the census of their natives; and according to these the tributes and the assignment of the two reals are collected. In most of the provinces no census has been taken, and the tributes are collected when due by the encomenderos and their collectors, through the chiefs of their encomiendas, by means of the lists and memoranda of former years. From them the names of the deceased and of those who have changed their residence are erased, and the names of those who have grown up, and of those who have recently moved into the encomienda, are added. When any shortage is perceived in the accounts, a new count is requested and made. The natives are free to move from one island to another, and from one province to another, and pay their tribute for that year in which they move and change their residence in the place to which they move; and to move from a Christian village that has instruction to another village possessing it. But, on the other hand, they may not move from a place having instruction to one without it, nor in the same village from one barangay to another, nor from one faction to another. In this respect, the necessary precautions are made by the government, and the necessary provisions by the Audiencia, so that this system may be kept, and so that all annoyances resulting from the moving of the settled natives of one place to another place may be avoided. Neither are the natives allowed to go out of their villages for trade, except by permission of the governor, or of his alcaldes-mayor and justices, or even of the religious, who most often have been embarrassed by this, because of the instruction. This is done so that the natives may not wander about aimlessly when there is no need of it, away from their homes and settlements. Those natives who possess slaves pay their tributes for them if the slaves are _saguiguilirs_. If the slaves are _namamahays_ living outside their owners' houses, they pay their own tributes, inasmuch as they possess their own houses and means of gain.