December 22, Tuesday. Only Seward and myself were with the President at Cabinet-meeting. Seward is highly pleased with the course taken in regard to the captured letters. Wanted me to send him all of Trowbridge’s which had not been published. I did so. He gave me a long confidential conversation about Mexican affairs which had been communicated by Mr. Corwin (Thomas Corwin.), our Minister, under the strongest injunctions of secrecy. Before he got through, however, Seward let out that he had read the dispatch to Lord Lyons, and I think said he let Lord L. take it; assumed that Earl Russell, on learning the facts, would not feel more amiably disposed towards the French.