TWO:The ability which Frederick displayed in striking his enemies where they would most keenly feel the infliction, and in warding off the blows they attempted in return, excited then the surprise of Europe, and has continued to elicit the astonishment of posterity. It would but weary the reader to attempt a description of these conflicts at the outposts, terrible as they often were. The Herstal Affair.The Summons.Voltaires Manifesto.George II. visits Hanover.The Visit of Wilhelmina to Berlin.Unpopularity of the King.Death of the Emperor Charles VI.