Mr. Otterbourg to Mr. F. W. Seward
Sir: Official news has been received that on the 27th of April Prince Maximilian had attempted a sally with all his forces from Queretaro and had defeated General Regules, who, being at the moment re-enforced by the liberals, commanded by Generals Corona and Escobedo, drove the imperialists with fearful slaughter back into the city, where they remain reduced to a third less of the position they held before the attempt.
It is now reported that on the 28th Prince Maximilian gained a victory over the constitutional forces, of which as yet no official confirmation has been received. At daybreak salvos of artillery announced the anniversary of the defeat of the French at Puebla on the 5th of May, 1862.
Nothing of note has occurred subsequent to the date of despatch No. 29, although an attack is hourly expected from without, and within the same arbitrary measures are employed to sustain the defence.
There is a report current that General Vidaurri will again assume the responsibilities of the ministry of finance.
I have the honor to be, very respectfully, your obedient servant,
Hon. F. W. Seward, Assistant Secretary of State, Washington, D. C.