The Board of Officers still continue industriously at work; but I have no result yet. Perhaps, I shall be able to communicate a plan of organization by Monday’s Mail.

The inclosd letter, and Extra newspaper, were received by me in the Mail of yesterday. The letter is certainly written by Mr. T. Biddle; and I presume Mr Bache threw it into the Mail, after the Bag had been locked; which accounts for the absence of a post-mark. I give credit (and so do Mr. Monroe and Mr. Crowninshield) to the news; but I have declined being the instrument of publishing it, lest it should turn out to be an imposition. The Mail of to-day will clear up all doubts. What a scene for speculation does the event, if true, open upon us! I am, Dear Sir, most respectfully & faithfully Yrs.