Mr. F. W. Seward to Lord Lyons.

My Lord: I have the honor to acknowledge the receipt of your memorandum of the 22d instant, respecting the case of the Mont Blanc, and to inform your lordship that that case is now the subject of consideration, and that a communication in relation to it will be sent to your lordship at an early day.

I have the honor to be, with high consideration, my lord, your obedient servant,

F. W. SEWARD, Acting Secretary.

Right Hon. Lord Lyons, &c., &c., &c.