The following letter from General Buell was received and read:

BURNET HOUSE, April 16, 1863.

Lieutenant Colonel DONN PIATT,

Judge-Advocate:

SIR: As soon as the Commission has finished with the proceedings which require my presence here I will proceed to Washington City to take the deposition of Colonel Fry, to be submitted in evidence to the Commission.

Very respectfully, your obedient servant,

D. C. BUELL,

Major-General.

There being no business before the Commission requiring the presence of General Buell, it adjourned to Friday, April 24, at 10 o'clock a.m.

CINCINNATI, April 24, 1863.

Commission met pursuant to adjournment. Present, the president (General Wallace), General Dana, General Tyler; also the judge-advocate and General Buell.

The JUDGE-ADVOCATE. After the close of our last session I received the following letter from General Buell:

BURNET HOUSE, April 16, 1863.

Lieutenant Colonel DONN PIATT,

Judge-Advocate:

SIR: I will on Monday, the 20th instant, at 10 o'clock a.m., before some competent officer, commence, and continue from day to day until completed, to take the testimony of Colonel J. B. Fry, Provost-Marshal-General, and Washington City, D. C., in the investigation now in progress concerning the operations of the Army of the Ohio in Tennessee and Kentucky, under my command.

Very respectfully, your obedient servant,

D. C. BUELL,

Major-General.

The JUDGE-ADVOCATE. To this letter I replied as follows:

LUDLOW, April 16, 1863.

Major-General BUELL,

U. S. Army, &c.:

GENERAL: I have the honor to call your attention to the fact that the notice served upon me to-day to take the deposition of Colonel Fry is defective in two particulars: it does not state at what place the deposition will be taken nor does it give me time to reach Washington.

I have the honor to be, general, yours, respectfully,

DONN PIATT,

Lieutenant-Colonel and Judge-Advocate.

The JUDGE-ADVOCATE. General Buell then wrote as follows:

BURNET HOUSE, April 16, 1863.

Lieutenant Colonel DONN PIATT,

Judge-Advocate:

SIR: I informed you this morning of my purpose to take Colonel Fry's deposition in Washington as soon as the business of the court would permit me to leave, and as soon as I was advised of the adjournment of the Commission until the 24th I notified you of the day. The deposition will be taken before the Judge-Advocate-General or other suitable officer.

Very respectfully, your obedient servant,

D. C. BUELL,

Major-General.

The JUDGE-ADVOCATE. I would state to the Commission that after the adjournment on Thursday, the 16th, I followed General Buell to Washington City, and on Wednesday, the 22d, we took depositions, one of Colonel Fry and the other of Governor Johnson; but for the purpose of being back here by the 24th it was necessary for me to leave