October 2, Thursday. Admiral Du Pont arrived to-day; looks hale and hearty. He is a skillful and accomplished officer. Has a fine address, is a courtier with perhaps too much finesse and management, resorts too much to extraneous and subordinate influences to accomplish what he might easily attain directly, and, like many naval officers, is given to cliques, — personal, naval clanship. This evil I have striven to break up, and, with the assistance of Secession, which took off some of the worst cases, have thus far been pretty successful, but there are symptoms of it in the South Atlantic Squadron, though I hope it is not serious. It is well that the officers should not only respect but have an attachment to their commanders, but not with injustice to others, nor at the expense of true patriotism and the service. But all that I have yet seen is, if not exactly what is wished, excusable. Certainly, while he continues to do his duty so well, I shall pass minor errors and sustain Du Pont. He gives me interesting details of incidents connected with the blockade, of the entrance to Stono, and affairs at James Island, where Benham committed a characteristic offense in one direction and Hunter a mistake in another.