Mary was up for some hours today, and seemed improving. She will however read much care, and will be cause of anxiety for some time. The American news bears out the impression received last night. It looks favorably for the government in spite of the nomination of General McClellan at Chicago, which was effected by skilful manipulation. The base is so rotten that only a chapter of favorable accidents will avail to hold it together until the election. A visit from Mr Pike, the Minister at the Hague, who has come over to consult upon the disposition of the Vessels of War in these waters, agreeably to directions from Washington. I gave him my opinion against increasing the number, but in favor of retaining what are now here, rather as a moral power than has having any practical objects. Having some leisure, I resumed my catalogue of coins, which is nearly completed. Brooks came back from Walton. Evening, a game of Whist.