DETROIT, August 20, 1862.

P. H. WATSON, Esq.,

Assistant Secretary of War:

In addition to the seven regiments of infantry and one of cavalry mentioned in your dispatch, and for which clothing and arms have been ordered, but not all yet arrived, there are two regiments of infantry and one of cavalry now full, for which clothing and arms have not been ordered. Can they be furnished? Blankets for three regiments are needed immediately, as the men are suffering for want of them.

JOHN ROBERTSON,

Adjutant-General of Michigan.

DETROIT, August 20, 1862-1.40 p. m.

Honorable EDWIN M. STANTON:

The infantry regiments are ready to commence moving from this State first of next week. To want point will they be ordered?

By order of the Governor:

JNO. ROBERTSON.

SAINT PAUL, MINN., August 20, 1862.

(Received 4.40 p. m.)

General C. P. BUCKINGHAM,

Assistant Adjutant-General:

We have commenced six new regiments of three-years's men under the President's last two calls for 600,000 troops. None of said regiments are full, but two will be within three days. Our frontiers are attacked by the Indians, and four companies of the new regiments have been detailed to protect our Western settlements. About 2,500 men are required to fill the regiments now organizing, and it will require two weeks from to-day to raise that number. No new regiment has gone to the field.

O. MALMROS,

Adjutant-General.

SAINT PAUL, MINN., August 20, 1862-12.10 p. m.

(Received 5 p. m.)

General C. P. BUCKINGHAM:

Must we fill up our old regiments in addition to raising our quota of 300,000 drafted nine-months" militia? Please answer immediately.

OSCAR MALMROS,

Adjutant-General.

CONCORD, N. H., August 20, 1862.

Brigadier General C. P. BUCKINGHAM,

Assistant Adjutant-General:

In answer to your first inquiry of yesterday, we have, including the Ninth Regiment, organized under the call for 75,000 volunteers, commenced six regiments. Second. Four regiments are now full. Third.