[Translation.]

Mr. Romero to Mr. Seward.

My Dear Sir: As a new proof of the interest which the government of the Mexican republic took in the triumph of the cause of the Union during the late civil war in the United States, I transmit to you the copy of a document which reached me recently, and which contains a proposal, made on the 29th of April, 1864, by Mr. José M Iglesias, minister of finance of the Mexican republic, to Major General F. J. Herron, then in command of the United States forces in Brownsville, to close the port of Matamoros to foreign commerce, so as to prevent the export of Texas cotton by the confederates, and receiving in exchange the articles they needed to carry on the war against this government.

Although the proposal was not accepted, and has little interest now, I think proper to give information of it to the government of the United States for reasons above given.

Yours, most respectfully,

M. ROMERO.

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

[Translation.]

Señor Iglesias to General Herron

Sir: Although I have no instructions from the President, and am not authorized by him to enter into arrangements in regard to the affair treated of in this letter, I have thought proper to put in writing the terms upon which it might be settled, in my opinion, taking as a basis the discussion that occurred in our conversations.

As the right of the Mexican government to prohibit, when it pleases, the importation of any goods whatever into its territory is clear and explicit, it would be no violation of neutrality, which it wishes to preserve, to prohibit the introduction of foreign cotton as soon as the specified term of 30 days shall have expired, which is given to afford time for the decree to reach the knowledge of those concerned.

But, laying aside the discussion of a right I have termed clear and explicit, it is evident the exercise of it would be condemned by those interested on one side, while it would deprive the Mexican treasury, on the other, of one of the most profitable entries it enjoys at this critical period.

Nothing is more reasonable, then, than a mutual compensation, and certainly it will not seem extravagant to ask a million of dollars and 20,000 muskets in an affair of this importance. This indemnity for the loss of a considerable revenue is of small import to the treasury of the United States, and is a circumstance that should be taken into consideration.

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The advantages the United States would derive from such an arrangement are important and too evident to need demonstration. A decree issued by the Mexican government would entirely stop the trade in cotton, while all the forces sent to guard the frontier could not do it along the vast course of the Rio Grande. Supposing it feasible to guard an extent of border which you, general, reckon at 400 miles, it would be much better to spare the troops that great labor and employ them in some more profitable duty. And it would be well to consider the great saving to the federal treasury by the proposed arrangement.

The great interest that you and Generals McClernand and Hamilton have taken in this cotton business induces me to hope my suggestion may be adopted, as it will bring about the desired results without the legal inconveniences presented by the project of seizure and confiscation.

The Mexican government certainly desires to increase the friendly relations that bind it to the United States, because the two nations must live in friendship; and whatever tends to that noble end ought to be constantly encouraged; and this is one more advantage in the projected combination.

I beg you, general, to communicate it to your government, and I will do-the same towards mine, so that, in case of approval, the plan may be executed with the customary formality.

I am pleased to have this occasion to say, with much respect, I am your most attentive and obedient servant,

JOSÉ M. IGLESIAS.

Major General F. J. Herron.