To General J. C. Fremont. Washington, June 12, 1862.

Major-General Fremont:

Accounts, which we do not credit, represent that Jackson is largely reinforced and turning upon you. Get your forces well in hand and keep us well and frequently advised; and if you find yourself really pressed by a superior force of the enemy, fall back cautiously toward or to Winchester, and we will have in due time Banks in position to sustain you. Do not fall back upon Harrisonburg unless upon tolerably clear necessity. We understand Jackson is on the other side of the Shenandoah from you, and hence cannot in any event press you into any necessity of a precipitate withdrawal.

A. LINCOLN.

P.S.—Yours, preferring Mount Jackson to Harrisonburg, is just received. On this point use your discretion, remembering that our object is to give such protection as you can to western Virginia. Many thanks to yourself, officers, and men for the gallant battle of last Sunday. A. L.