This is authentically the world-famous Frankfurt Affair;--done by Fredersdorf, as we say; Friedrich, absent in Silesia, or in Preussen even, having no hand in it, except the original Order left with Fredersdorf. Voltaire has used his flamingest colors on this occasion, being indeed dreadfully provoked and chagrined; painting the thing in a very flagrant manner,--known to all readers. Voltaire's flagrant Narrative had the round of the world to itself, for a hundred years; and did its share of execution against Friedrich. Till at length, recently, a precise impartial hand, the Herr Varnhagen, thought of looking into the Archives; and has, in a distinct, minute and entertaining way, explained the truth of it to everybody;--leaving the Voltaire Narrative in rather sad condition. [Varnhagen von Ense,--Voltaire in Frankfurt am Mayn,--1753 (separate, as here, 12mo, pp. 92; or in--Berliner Kalender--for 1846).] We have little room; but must give, compressed, from Varnhagen and the other evidences, a few of the characteristic points. The story falls into two Parts. PART I. FREDERSDORF SENDS INSTRUCTIONS; THE "OEUVRE DE POESIE" IS GOT; BUT-- APRIL 11th, 1753 (few days after that of Maupertuis's Cartel, Voltaire having set to firing through port-holes again, and the King being swift in his resolution on it), Factotum Fredersdorf, who has a free-flowing yet a steady and compact pen, directs Herr Freytag, our Resident at Frankfurt-on-Mayn, To procure from the Authorities there, on Majesty's request, the necessary powers; then vigilantly to look out for Voltaire's arrival; to detain the said Voltaire, and, if necessary, arrest him, till he deliver certain articles belonging to his Majesty: Cross of Merit, Gold Key, printed OEUVRE DE POESIES and Writings (SKRIPTUREN) of his Majesty's; in short, various articles,--the specification of which is somewhat indistinct. In Fredersdorf's writing, all this; not so mathematically luminous and indisputable as in Eichel's it would have been. Freytag put questions, and there passed several Letters between Fredersdorf and him; but it was always uncomfortably hazy to Freytag, and he never understood or guessed that the OEUVRE DE POESIES was the vital item, and the rest formal in comparison. Which is justly considered to have been an unlucky circumstance, as matters turned. For help to himself, Freytag is to take counsel with one Hofrath Schmidt; a substantial experienced Burgher of Frankfurt, whose rathship is Prussian.