The hereditary rights of children to share in the property of their parents have been made the subject of an interesting study by Clement Deneus (215), a lawyer of Ghent, who has treated in detail of the limitation of the patria potestas in respect to disposition of the patrimony, and the reservation to the children of a portion of the property of their parents--an almost inviolable right, of which they can be deprived only in consequence of the gravest offences. This reservation the author considers "a principle universally recognized among civilized nations," and an institution which marks a progress in the history of law and of civilization (215. 49), while testamentary freedom is unjust and inexpedient. The author discusses the subject from the points of view of history, statute and natural law, social economy, etc., devoting special attention to pointing out the defects of the system of the school of Le Play,--primogeniture, which still obtains in England, in several parts of Germany, in certain localities of the Pyrenees, and in the Basque provinces. In the countries of modern Europe, the testamentary power of the father is limited as follows: _Austria_ (Code of 1812): One-half of parents' property reserved for children. The law of 1889 makes exception in the case of rural patrimonies of moderate size with dwelling attached, where the father has the right to designate his heir. _Denmark_ (Code of 1845): Father can dispose of but one-fourth of the property; nobles, however, are allowed to bestow upon one of their children the half of their fortune. _Germany_: No uniform civil legislation exists as yet for the whole empire. In the majority of the smaller states, in a part of Bavaria, Rügen, eastern Pomerania, Schleswig-Holstein, the _Corpus Juris Civilis_ of Justinian is in force, while the Napoleonic code obtains in Rhenish Prussia, Hesse, and Bavaria, in Baden, Berg, Alsace-Lorraine. In Prussia, the reserve is one-third, if there are less than three children; one-half, if there are three or four. In Saxony, if there are five or more children, the reserve is one-half; if there are four or less, one-third. _Greece:_ The Justinian novels are followed. _Holland:_ The Napoleonic code is in force. _Italy_ (Code of 1866): The reserve is one-half. _Norway_ (Code of 1637, modified in 1800, 1811, 1825): The father is allowed free disposal of one-half of the patrimony, but for religious charities (_fondationspieuses_) only. _Portugal_: The legitimate is two-thirds. _Roumania_ (Code of 1865): The same provision as in the Napoleonic code. _Russia_ (Code of 1835): The father can dispose at pleasure of the personal property and property acquired, but the property itself must be divided equally. In Esthonia, this provision also applies to personal property acquired by inheritance. _Spain_ (Code of 1889): The father can dispose of one-third of the patrimony to a stranger; to a child he can will two-thirds.