Count Wydenhruch to Mr. Seward.

Mr. Secretary of State: I hope you will excuse my troubling you so early with these lines.

The Chronicle of this morning gives the accompanying despatch as having been received at the State Department. May I ask if this is really the case; as, should the news of the capture of Prince Maximilian be official, it would be my duty to telegraph the same at once to Vienna.

I trust that, should this serious event have taken place, your intervention of the 6th of April will not only shield the life of the prince and his foreign followers, but will also insure to the prince honorable treatment and facilitate his embarcation for Europe.

I have the honor to remain, Mr. Secretary of State, with the highest consideration, your obedient servant,

WYDENBRUCK.

Hon. William H. Seward, &c., &c., &c.

From the State Department.

The following was received yesterday morning at the State Department :

Hon. W. H. Seward:

I have this moment received the following despatch by telegraph, via Galveston, dated at Matamoras, May 21 :

“I have the honor to transmit the following official letter :

“‘San Luis Potosi, May 15.

“‘General Berriozabal :

“‘My Esteemed Friend: Vive la Patria. Queretaro has fallen by force of arms this a. m. at 8 o’clock. Maximilian, Mejia, Castello, and Miramon are prisoners.

“‘BENITO JUAREZ.’

Yours truly,

“‘M.B.MARSHALL.

“E. P. Plumb.”