JULY 22, 1864.

Lieutenant-Colonel CALDWELL,

Commanding First Iowa Cavalry, Macon City, Mo.:

A detachment of cavalry under Colonel Catherwood will join you to-day, and assume command of an expedition for which he has verbal instructions. Await his arrival.

O. D. GREENE,

Assistant Adjutant-General.

MACON, July 22, 1864.

General FISK:

I have orders from General Rosecrans to halt here until Colonel Catherwood arrives, when he will take command and join you. I am looking for him every moment.

J. W. CALDWELL,

Lieutenant-Colonel, Commanding.

MACON, July 22, 1864.

General FISK:

Will you want to move any troops from here to-night? I have two trains ready now, and I find 400 troops with horses here waiting orders.

E. C. CATHERWOOD].

SAINT JOSEPH, July 22, 1864.

COMMANDING OFFICER CAVALRY FORCE,

Macon:

Move to Cameron and debark troops. I will meet you there and join in the chase after Thornton. Lose no time.

CLINTON B. FISK,

Brigadier-General.

CHILLICOTHE, MO., July 22, 1864.

General CLINTON B. FISK,

Saint Joseph, Mo.:

GENERAL: Upon the receipt of your telegraphic order about 10 o'clock yesterday, I immediately ordered the captains of companies of the Thirtieth Regiment Enrolled Missouri Militia and requested all loyal men of the county who could procure horses and arms to assemble forthwith and report for duty at this place. I came here last evening and telegraphed you to the effect above. The men, 400 or 500 strong, will arrive here during this day. They will be but indifferently armed and short of ammunition, but will be ready for such service as you may assign them to. I am in rather poor health, but eager to do my whole duty. In giving my captains orders to assemble their men I gave them men. Some irregularities may grow out of this, but I assumed from the tenor of the order that the emergency was great and that immediate