HDQRS. DEPT. OF THE GULF, NINETEENTH ARMY CORPS,
Cote-Gelee, near Vermillionville, April 18, 1863.

Major General C. C. AUGUR,

Commanding First Division, Baton Rouge:

SIR: We encountered the enemy, what there is left of his infantry, cavalry, and artillery, at Bayou Vermillion. He masked his batteries and sharpshooters and fired on Grover and Dwight, who occupied opposite banks and were engaged in a reconnaissance. They were ultimately driven off. We sustained some loss, but the enemy's was much greater. They have destroyed the bridge, which will be reconstructed with some difficulty and delay our march a few hours. We shall resume it at the earliest moment and press a vigorous pursuit of the enemy.

I desire you to observe closely the movements of the enemy at Port Hudson, especially in the direction of New Orleans.

You will make offensive demonstrations every day int he direction of Port Hudson, with the view and effect of deterring him from weakening his forces there.

Let it be understood that we shall be down upon him before he knows it and from and unexpected quarter. All these things are important, and must not be neglected.

Relying with confidence on your vigilance and activity, I am, very truly, yours,

N. P. BANKS,

Major-General, Commanding.

HDQRS. DEPT. OF THE GULF, NINETEENTH ARMY CORPS,
Cote-Gelee, Near Vermillionville, April 18, 1863.

Major General C. C. AUGUR, Comdg. Forces at Baton Rouge:

SIR: The commanding general wishes you to send the following to Admiral Farragut:

We shall occupy Opelousas probably on the 20th; we can be in Alexandria in the last week of this month. Can you reach that point on the Red River with your fleet? When will Grant's force reach the mouth of Black River? Communicate with him and ascertain.

N. P. BANKS,

Major-General, Commanding.

RICH'D B. IRWIN,

Assistant Adjutant-General.

HDQRS. DEPT. OF THE GULF, NINETEENTH ARMY CORPS,
Cote-Gelee, near Vermillionville, April 18, 1863.

Major General C. C. AUGUR, Comdg. Forces at Baton Rouge:

SIR: The commanding general wishes you to communicate the following to Admiral Farragut:

We have destroyed the Diana, Hart, Queen of the West, and many transports of the enemy. We have captured 2,000 prisoners, his best officers of the Army and Navy, demolished his foundries, and are now in full pursuit of the remnant of his force.

N. P. BANKS,

Major-General, Commanding.

I have the honor to be, very respectfully, your obedient servant,

RICH'D B. IRWIN,

Assistant Adjutant-General.