This morning the Minister of Prussia, M. Thulemeyer, has again visited the Deputies of the eighteen cities of Holland, to inform them of a Memorial, which he has presented to their High Mightinesses against a certain libel, in which, among other calumnies, is an insinuation, that the Princess attempted to imitate the conduct of a certain Empress in relation to her husband.

It has been replied to him, "that their Noble and Grand Mightinesses, as well as their High Mightinesses, had long since done everything in their power against libels by severe placards; that the further measures, which seemed to be expected of them, and which, perhaps, were suitable enough in arbitrary governments, could not be adopted in this Republic, of which the liberty of the press is the Palladium; that it is like every other good thing, the use of which is free to all, and the abuse subject to the animadversion of the bailiffs and fiscals; that the Minister knows how lately their Noble and Grand Mightinesses have had reason to complain of the negligence of those officers of justice; that the Princess, the Prince, and the whole House of Orange, more nearly connected with them than with the King, his master, did not need any foreign commendation to make themselves beloved and respected by the nation, and protected by the Sovereign, &c."

December 21st. The three ostensible exciters of the Cockade Conspiracy, protected by an invisible hand, have escaped from justice and fled to Cranenberg, a village in the Duchy of Cleves. The Court having sent its officers to arrest them at the peril of the complainants, the Regency of Cleves, contrary to the law of nations, has refused to allow the arrest. This morning the States held an extraordinary session to deliberate on the subject, and, notwithstanding the opposition of the nobles, adopted a resolution, requiring the court of justice to make a solemn demand of the fugitives at Cleves, in the name of the Sovereign; on Friday next, a letter will be addressed on this subject directly to the King of Prussia, and Duke of Cleves.

The Grand Bailiff of Utrecht (Count d'Athlone) has lost, with costs of suit, his case against the editor of a weekly newspaper, (de Post van den Neder-Rhein) which for about two years has produced a wonderful impression on the nation. This is a brilliant victory of the patriots over their enemies. Some of the expressions, which have given offence were, la brouette va de travers, qu'il-y-a une main invisible qui gâte tout, &c.

In Friesland, the majority of the eleven cities, which form the fourth Quarter of the Sovereignty, have annulled the influence of the Court on the appointment of their circuits. Thus the resolution of the Province, so disagreeable to the Court, will be unanimous.

December 24th. I have just been confidentially informed, on condition of my writing an account of the fact to my friends at Dort and Amsterdam, that this morning the Prince went to declare to their High Mightinesses, that, on the resolution of Zealand, taken on the report of the court of justice, although there was much to be said relative to that report, he was ready, under leave of their High Mightinesses, to transfer the prisoner Witte from the hands of the High Council of War to those of the court of justice. On which the Grand Pensionary first protested with a loud voice, that it was necessary to wait till Friday for the resolution of the Sovereign thereon; and then, in a low voice, he intimated to the President, that it might be done by a majority. The prisoner will, therefore, be transferred to night.

On Wednesday last, a courier despatched from hence to anticipate the demand of the court of justice, arrived at Cleves the same night, caused the gates to be opened, the three conspirators, who were abed, to be called, conducted them hastily out by the other gate, and after going some distance on foot, stowed them away in a carriage, which, according to appearances, carried them to Hanover.

December 26th. The accompanying note I sent to M. Van der Hoop, Fiscal of the Admiralty of Amsterdam, in consequence of the request presented at Amsterdam by the agents of an American letter of marque. My demand of a passport for these people, to protect them from being made prisoners when ashore, has been granted. I congratulate myself, that my first public measure has been, like all my other measures, secundum libertatem. It has been suggested to me to make another against a certain libel, "The Magic Lantern," in which America and her worthy Plenipotentiary here have been roughly handled. I replied, that I would do nothing, which could afford any pretext for violating the liberty of the press; of which the present instance of abuse deserved only contempt.

I am, &c.

DUMAS.