Andrew A. Humphreys to H. W. HALuecx, October 16, 1863

(Received 2.30 p. m.) Maj. Gen. H. W. HALuecx, General-in-Chief: Your telegram of the 15th is just received. Theinfantry at Cam Sprague (1,700) will be ready this evening. They are being arme this morning. As it involves no delay the cavalry will be sent direct. Ihad already arranged with the adjutant-general of the State to notify me by telegraph, so that I may have transportation in readiness for the troops from the interior at the moment of their arrival here. E. D. R. S. CANBY, Brigadier-General. (Received 10 p. m.) Major-General HALLECK: Reports from scouts and the cavalry would indicate a movement of the enemy into the Loudoun and, probably, the Shenandoah Val- leys. Their cavalry have been seen in the direction of Aldie and their trains passing through Thoroughfare and Hopewell Gaps. My cavalry to-night occupy Manassas Junction, having driven out of it a small force of cavalry and infantry. No information of the position of their infantry has yet been received. So soon as I can form any correct idea of his movements, I shall move to meet him. I send this information that you may warn Generals Kelley and Lockwood. _ GEO. G. MEADE, Major-General, Commanding. HEADQUARTERS ARMY OF THE Potomac, } October 17, 1863. Major-General FRENCH: How much has Bull Run swollen at Union Mills? Can you ford it this morning?

A. A. HUMPHREYS,