Mr. Seward to Mr. Burton

No. 164.]

Sir: I have the honor to acknowledge the receipt of your despatch No. 277, of the 3d ultimo, informing the department of the inquiry you addressed to the government of Colombia as to its interpretation of the treaty concerning the isthmus in case of an insurrection in that locality, and of the reply you received thereto.

Your action is approved by the department, and I thank you for the assiduity and dilligence with which you have gathered information that may ultimately be useful.

I am, sir, your obedient servant,

WILLIAM H. SEWARD.

Allan A. Burton, Esq., &c., & c., & c.