Mr. Seward to Mr. Koerner.

No. 79.]

Sir:Your despatch of March 20, No. 83, has been received.

I thank you for the perseverance you have exercised in tracing the affair of the Princess to its source, and I think it proper that you should informally make known to Sir John Crampton, her Britannic Majesty’s ambassador at Madrid, the favorable impression which has been made upon this government by the directness and frankness with which he has made known to you the information which he possessed upon that subject. I shall take occasion to address myself in the same sense to her Britannic Majesty’s government.

I am, sir, your obedient servant,

WILLIAM H. SEWARD.

Gustavus Koerner, Esq., &c., &c., &c., Madrid.