Mr. F. W. Seward to Mr. Romero
Sir: I have the honor to acknowledge the receipt of your note of yesterday, communicating a copy of a despatch just received from the Mexican government, transmitting to you the assent of the sovereign congress of the republic to the application of this government for permission to pass troops of the United States across the Mexican territory of Guaymas to Arizona, under certain pledges of security and non-interference with the persons or property of the territory to be traversed.
I beg you to convey to your government assurances of the high appreciation entertained by this government of the liberal, prompt, and magnanimous response which Mexico has made to the United States in this emergency. We are profoundly sensible that such a policy could be adopted only under the most exalted confidence in the integrity and good faith of this government, which will endeavor [Page 541] by every means so to excercise the privilege conceded, that neither the authorities nor the people of Mexico will have cause to regret the marked courtesy they have extended to a friendly power.
I avail myself of this occasion to renew to you, sir, the assurances of my highest consideration.
Señor Matias Romero, &c., &c., &c. Washington, D, C.