FORT MORGAN, ALA., August 23, 1864.

Major FRANK W. MARSTON,

Chief Signal Officer, Mil. Div. of W. Miss., New Orleans, La.:

MAJOR: I have the honor to submit to your kind attention the following official messages passed through my station at headquarteres of Major General Gordon Granger in Mobile Bay, Ala., from August 11 to August 23, 1864:

DAUPHIN ISLAND, Thursday, August 11, 1864 - 8.40 a. M.

General GRANGER:

At what time will your boat be at the landing on this side?

GRIER,

Colonel, commanding Forces, Dauphin Island.

FLAG-SHIP - 10 a. M.

General GRANGER,

Mobile, Point:

Shall you end the telegraph train on the other side?

F. W. MARSTON,

Captain.

Captain W. F. MARSTON:

No; not at present.

GRANGER,

General.

MOBILE POINT.

Captain MARSTON:

I just arrived here. Can I not remain here? The trains are needed here.

WALKER,

Captain.

Captain WALKER:

You will relieve Lieutenant Sizer at Fort Gaines.

MARSTON,

Captain.

FORT GAINES.

Captain MARSTON:

The general does not want the trains on the other side.

SIZER,

Lieutenant.

Lieutenant SIZER:

You will remain.

MARSTON,

Captain.

Captain MARSTON:

Shall Lieutenant Harris go?

DENICKE,

Lieutenant.

Lieutenant DENICKE:

10.30 a. M. - Captain Walker will remain with Lieutenant Harriws where he is.

MARSTON,

Captain.

Lieutenant DENICKE:

Where is the acting assistant quartermaster and the telegraph?

WALKER,

Captain.

Captain WALKER:

At the fort.

DENICKE,

Lieutenant.

Lieutenant DENICKE:

We need the telegraph and rations here.

WALKER,

Captain.