and for the troops. Would it be possible for troops to move upon the battle-field even with a less allowance?

This allowance occurs to me to be the very smallest limits the troops should move upon the battle-field with.

Question. Would it be proper ordinarily for an army of the size, in anticipation of battle, to move from its depots with as limited an allowance of ammunition as 100 rounds?

No, sir; my rule has been to move with 300; General Halleck required 500 in front of Corinth, and our orders were that everything should be left before the ammunition wagons. I do not know whether this extended through General Halleck's army; it extended through the Army of the Mississippi.

Question. Supposing an army to be moved even a distance of 30 or 40 miles from its depots, about how many day's rations should it have with it to guard against the ordinary interruptions in its communications by accident or the operations of the enemy?

I would answer not less than from ten to fifteen. There are so many considerations to enter into as to what should guide a commander under such circumstances that it is hardly possible to give an answer that would be definite, as the nature of the roads, the nature of the country, the exposed or not exposed position of your lines of communication; but under ordinary circumstances the estimate I have made would be the correct one. Again, an army may be moving through a country where there is beef and other supplies which the troops may obtain.

Question. Even supposing that the army is moving through a country from which it can supply itself with forage, will it ordinarily be necessary to carry a certain supply along on every day's march, or at least carry the transportation that will be necessary to bring it into camp at the termination of the march?

It is usual and necessary to carry always from one to three days' rations, inasmuch as it is impossible to tell where your camps may be. I always endeavor to carry two or three days'; if facilities the march very much and enables you to encamps where you please; whereas if you have no forage you may be compelled to make half a march or a double one.

Question. Will or will not these various requirements unavoidably increase very considerably the train of the army beyond that which we have given in this supposed case?

Yes, sir; it will nearly or quite double it.

Question. But supposing this minimum allowance for a wagon train, that is, the allowance that an army would unavoidably carry with it upon the battle-field, and supposing the minimum increase in the space which the column will occupy on the march beyond that which results from theory, that is, an increase of one-half, making the length of the column on the march about 24 miles, how many hours would it take to move this column from one point to another point 12 miles distant; in other woods, supposing the advance of the army to march at 5 o'clock in the morning, at what time will the rear of the column get into camp 12 miles distant? You may suppose also that the column moves at an average rate of 12 miles an hour.

Is it supposed that this column moves on one road?

Question. On one road.

My estimate must be an approximation; it is that the column would get into camp about eighteen after the advance started. I had occasion once to time a column on a pretty good road and marching well, of 7,000 men. This column had no wagons, but had-

General TYLER. Mr. President, I object to the general's explanation, as he has already answered the question, and this explanation is an