Current History Magazine for June contained a brief reference to the arrest of leaders of the Sinn Fein movement in Ireland, May 18, 1918, for being in treasonable communication with the Germans. Among the leaders arrested was Professor Edward de Valera, President of the Sinn Fein Society and a member of Parliament, who had refused to take his seat; also George Noble Plunkett, a Count of Rome and Member of Parliament; Mme. Markievicz, wife of a Polish Count; Arthur Giffith, one of the founders of the Sinn Fein movement; William T. Cosgrove, Treasurer of the Sinn Fein and Member of Parliament from Kilkenny City; Joseph McGuinness, Member of Parliament for South Longford; Darrel Figgis, an Irish poet; Dr. Richard Hayes, Herbert Mellowes, who led the Sinn Fein rising in Galway in 1916; Professor Monaghan, President of the local Sinn Fein Club at Drogheda; Pierce McCann, President of the East Tipperary Sinn Fein Executive; Frank Drohan, President of the Clonmel Sinn Fein Club; Dr. Thomas Dillon, Sean Milroy, and Sean McEntee, members of the Sinn Fein Executive; George Nichols, Coroner for the County of Galway, and Peter Hughes, Chairman of Dundalk Urban Council and a prominent Sinn Feiner. In all sixty-nine were arrested and imprisoned in England, not 500, as at first reported. The arrests were made between midnight and dawn by domiciliary visits, and were accomplished without any disorder, being a complete surprise. OFFICIAL PROCLAMATION Preceding the arrests the following proclamation was issued by Field Marshal French, Lord Lieutenant of Ireland: Whereas, It has come to our knowledge that certain subjects of his Majesty the King domiciled in Ireland have conspired to enter into treasonable communication with the German enemy; And whereas, Such treachery is a menace to the fair name of Ireland and its glorious military record--a record which is a source of intense pride to a country whose sons have always distinguished themselves and fought with such heroic valor in the past, in the same way as thousands of them are now fighting in this war; And whereas, Drastic measures must be taken to put down this German plot, which measures will be directed solely against that plot, Now, therefore, we, the Lord Lieutenant General and General Governor of Ireland, have thought fit to issue this our proclamation declaring, and it is hereby declared, as follows: That it is the duty of all loyal subjects of his Majesty to assist in every way his Majesty's Government in Ireland to suppress this treasonable conspiracy, and to defeat the treacherous attempt of the Germans to defame the honor of Irishmen for their own ends.