The excellent service performed by this detachment has fully realized my wishes, and exemplified the efficiency of the organization--infantry and light artillery handled as skirmishers.

The howitzers were always landed as quickly as the men, and were brought into action before the light pieces of the land-service could be got ashore.
I regret very much that the reduced complements of the vessels prevent me from maintaining the force in constant organization.
With three hundred more marines and five hundred seamen I could frequently operate to great advantage, at the present time, when the attention of the rebels is so engrossed by General Sherman.
It is said that they have a force at Hardeeville, the pickets of which were retained on the Union Causeway until a few days since, when some of our troops crossed the river and pushed them back.
Concurrently with this, I caused the Sonoma to anchor so as to sweep the ground in the direction of the causeway.
The transfer of the right-wing (thirty thousand men) to Beaufort will so imperil the rebel force at Hardeeville that it will be cut off or dispersed, if not moved in season.
Meanwhile I will send the Dai-Ching to St.Helena, to meet any want that may arise in that quarter, while the Mingo and Pontiac will be ready to act from Broad River.
The general route of the army will be northward; but the exact direction must be decided more or less by circumstances which it may not be possible to foresee....
My cooperation will be confined to assistance in attacking Charleston, or in establishing communication at Georgetown, in case the army pushes on without attacking Charleston, and time alone will show which of these will eventuate.
The weather of the winter first, and the condition of the ground in spring, would permit little advantage to be derived from the presence of the army at Richmond until the middle of May.

So that General Sherman has no reason to move in haste, but can choose such objects as he prefers, and take as much time as their attainment may demand.

The Department will learn the objects in view of General Sherman more precisely from a letter addressed by him to General Halleck, which he read to me a few days since.
I have the honor to be, very respectfully, your obedient servant, J.A.DAHLGREN, Rear-Admiral, commanding South-Atlantic Blockading Squadron.
HEADQUARTERS MILITARY DIVISION OF THE MISSISSIPPI, IN THE FIELD, POCOTALIGO, SOUTH CAROLINA, January 29, 1885.
Major-General J.G.FOSTER, commanding Department of the South.
GENERAL: I have just received dispatches from General Grant, stating that Schofield's corps (the Twenty-third), twenty-one thousand strong, is ordered east from Tennessee, and will be sent to Beaufort, North Carolina.

That is well; I want that force to secure a point on the railroad about Goldsboro', and then to build the railroad out to that point.