Congress has made use of the State courts in certain cases as part of the machinery of the federal government. While by the Constitution "the judicial power of the United States" can only be vested in the courts of the United States, the phrase as thus used refers only to the power of judging causes in courts of record. State courts and magistrates can therefore be given jurisdiction by Congress over any acts in aid of the functions of the United States, the supervision of which may be regarded as ministerial, or as incidental to judicial power rather than a part of it. They have received it in this way with respect to such matters as seizure of deserters from a merchantman, the arrest and commitment or bail of offenders against the criminal laws of the United States, the taking of affidavits and depositions for use in proceedings before federal authorities, and the naturalization of aliens.[Footnote: Robertson _v._ Baldwin, 165 U. S. Reports, 275.] State courts also have jurisdiction over any civil action to enforce a right given by the laws of the United States, unless Congress has otherwise provided. They constitute together with the federal courts one general judicial system for the whole country.[Footnote: Cluflin _v._ Houseman, 93 U. S. Reports, 130, 137; Calvin v. Huntley, 178 Mass. Reports, 29; 59 Northeastern Reporter, 435.] Almost all American courts are known as "courts of record." A court of record, in modern parlance, is one which tries causes between parties and is required to keep a full official and permanent record of its disposition of them. For this purpose most courts are furnished with a recording officer, called the clerk. His record is the only evidence of their judgments and cannot be contradicted or impeached in any collateral proceeding. If there is any error in it, it can only be shown on a direct proceeding brought to correct it. Justices of the peace, when authorized to try causes, act only in small matters and in a summary way. In most States they are not, when exercising this function, deemed to constitute a court of record. Nor is any court, even though furnished with a clerk, if its proceedings are not recorded in full, but simply made the subject of brief notes or minutes,[Footnote: Hutkoff _v._ Demorest, 104 N. Y. Reports, 655; 10 Northeastern Reporter, 535.] unless there is a statute or local practice giving such notes or minutes the effect of a record.