The language which you used respecting me and my conduct in court, last Saturday evening, renders it necessary that I call on you for such explanation, apology, or satisfaction, as one gentleman when thus injured has a right to demand from another. My friend, Mr. Grosvenor, who will hand you this, is authorized to confer with you, or any one designated by you, on the subject, and to make such arrangements as the circumstances of the case may in any event require.