...er brief pauses at Prague, Dresden, and Leipsic, he visited Berlin, where he remained five weeks. Here he saw much of society, and conversed with the celebrated savans,Humboldt, Savigny, Ranke, and Raumer . Mr. Wheaton, the American Minister, was absent from his post, but Sumner formed a lasting friendship with the Secretary of Legation, Theodore S. Fay. Fay wrote to Sumner from Berlin, Jan. 14...