1. Our aviators report large force of White infantry moving south over South Billerica-Bedford road toward Lexington. Our cavalry detachments are observing the country through Winchester, Lexington and Waltham. The 2nd Brown Brigade is marching to Cambridge. The 3d Brown Brigade remains in Boston. Our field army, less the 1st Division, is still encamped at Dedham.

2. This brigade will make a reconnaissance toward Arlington Heights and Waltham.

3. The 1st Infantry will march at 1.30 P. M., by way of Arlington, to Arlington Heights. The 2d Infantry (Harvard Regiment) will march at 1.30 P. M., to Belmont. The 3d Infantry will march at 1.30 P. M., by way of Watertown, to Waltham. Each column will provide its own protective detachments and will maintain communication with the other columns.

4. The field trains will remain in Cambridge.

5. I will remain in camp at Cambridge. All messages to camp headquarters.   B----   Brigadier-General.

Maps:--U. S. Geological Survey, Boston Quadrangle, and Boston and Surroundings (Walker Lith. & Pub. Co.).

The Commanding Officer, Harvard Regiment, at 1.30 o'clock, assembles his battalion commanders and staff, and issues the following verbal orders:

Field Orders, No. 1.   Harvard Regiment,   Cambridge, Mass.,   7 May, '16. 1.30 P.M.

1. Our aviators report large force of White Infantry moving south over South Billerica-Bedford road toward Lexington. Our cavalry detachments are observing the country through Winchester, Lexington and Waltham. The 2d Brown Brigade is marching to Cambridge. The 3d Brown Brigade remains in Boston. Our field army, less the 1st Division, is still encamped at Dedham. The First Infantry has been ordered to make a reconnaissance toward Arlington Heights via Arlington. The 3d Infantry will make a reconnaissance by way of Watertown to Waltham.

2. This Regiment will march to Belmont via Garden street-Huron-avenue-Concord avenue-Belmont Station-to junction of Pleasant and Center streets.

3. (a) The 1st Battalion will act as advance guard, and the reserve will clear Harvard square at 1.45 P. M.

(b) The main body will follow the advance guard at 600 yards.

(c) The advance guard commander will maintain communication with the 1st and 3d Regiments.

4. The field train will remain in camp.

5. Messages to the head of main body.   CORDIER,   Commanding.