Æmilius Macer, On the Law of Five Per Cent Tax of Estates, Book II. Ulpianus says that the following rule should be adopted in making the estimate of maintenance to be furnished. The amount bequeathed to anyone for this purpose from the first to the twentieth year is computed to have lasted for thirty years, and the Falcidian portion of that sum shall be reserved. From twenty to twenty-five years, the amount is calculated for twenty-eight years, from twenty to thirty years, the amount is calculated for twenty-five years; from thirty to thirty-five years, the amount is calculated for twenty-two years, from thirty to forty years, it is computed for twenty years; from forty to fifty years, the computation is made for as many years as the party lacks of the sixtieth year after having omitted one year; from the fiftieth to the fifty-fifth, the amount is calculated for nine years; from the fifty-fifth to the sixtieth year, it is calculated for seven years; and for any age above sixty, no matter what it may be, the computation is made for five years. Ulpianus also says that we use this same rule in making the calculation with reference to the legacy of an usufruct. Nevertheless, it is the practice for the computation to be made for thirty years from the first to the thirtieth, but after the age of thirty years it is made for as many years as the legatee lacks of being sixty; hence the computation is never made for a longer time than thirty years. Finally, in like manner, the computation is made for the period of thirty years, where the usufruct of property is bequeathed to the State, either simply, or for the purpose of celebrating games. 1Where one of the heirs claims that certain property belongs to him individually, and it is afterwards proved to constitute part of the estate, certain authorities hold that the Falcidian portion cannot be reserved out of said property, because it makes no difference whether the heir appropriated it, or denied that it belonged to the estate. This opinion Ulpianus very properly does not accept.