It can pronounce upon the decisions of all the tribunals of the judiciary, properly so called, but cannot take cognizance of any decision of administrative justice. The decisions of the military tribunals can be brought before it only by non-military persons appealing against the incompetence of the military jurisdiction in their case. It can quash the decisions of Juges de Paix only when they exceed their power. It cannot determine upon the decisions of voluntary arbitrators, who are not considered as legal tribunals, nor upon judgments which are not definitive and conclusive, or which have acquired the authority of the famous _chose jugée_,--decision rendered. The Cour de Cassation consists of a first President, three Presidents of Chambers, forty-five Conseillers divided among the three chambers (of Requêtes, Civil and Criminal), a Procureur général, six Avocats généraux, a Greffier en chef, and four Greffiers. The Chambre des Requêtes sits in judgment in all civil matters not excepted by some law, if the appeal is admissible. In this case, it sends back, by a decision the grounds of which are not given, the case to the Chambre Civile. Otherwise, it rejects the appeal by a decree the grounds of which are given. It renders judgment in electoral matters, and, within certain limits, in various special affairs. The Chambre Civile decides definitely upon all appeals received and sent to it by the Chambre des Requêtes, it takes cognizance directly of appeals in questions of expropriation for the public utility, of appeals brought, in questions of law only, in civil matters, by the _procès gallican_ before the Cour de Cassation; of appeals, when there are grounds, in disciplinary matters. The Chambre Criminelle decides directly upon appeals in affairs criminal, _correctionnelle_, and of the police, upon demands for revision in judicial decisions and transferrals from one tribunal to another, in cases in which the legal powers have been exceeded and the decisions are annulled under proceedings instituted by order of the Minister of Justice. In certain cases, determined by the law, the three Chambres are united in a solemn audience to sit as the Conseil Supérieur de la Magistrature.