By General TYLER:

Question. At whose nomination do you hold your appointment?

I was appointed by General Sherman on the 2nd November, 1861. The order was reannounced by General Buell after he took command. I have been appointed, by order bearing date November 2, 1862, by General Rosecrans and am now acting under his orders.

Question. Are the expenses of these repairs borne by the General Government or are they borne in part by the roads?

From the organization of my party last spring all expenses of repairs, labor, and material were defrayed from moneys earned on the roads and or freight not carried for the Government and for passengers, except the last pay roll before leaving Nashville. Since that time the expenses have been paid by the quartermaster's department, and I was ordered to charge to the Louisville and Nashville Company the amount of money expended on their road and branches, to be accounted for by them in the settlement of the transportation account with the Government. That order was from General Buell.

Question. Do you make regular statements of the earnings and expenses of the quartermaster's department the same as you would do to a regular company?

I have not made any report of earnings or expenses to the quartermaster's department, but have submitted vouchers and pay rolls for expenses. Since September 1 I have kept regular railroad books of all earnings and expenditures.

Question. Why have you not made a report of regular earnings as you have expenses?

I have not made any earnings since my expenses have been reported to the quartermaster's department.

Question. What is the gauge on these Southern roads?

Five feet.

Questions. Are all the roads concentrating in Chattanooga of a uniform gauge of 5 feet?

They are.

Question. What became of the rolling stock belonging to the roads meeting at Chattanooga before our army advanced into Tennessee?

I do not know. I presume it was all taken South. We found at Nashville no engine in working order. Only one engine in good condition was found on the Nashville and Northern road, but I do not know at what point. All the engines found at Nashville were so damaged as to render it impossible to take them away.

Question. After the roads concentrating at Chattanooga as far as Stevenson were repaired at the cost of the Government had they sufficient rolling stock to operate those roads to any possible advantage?

There was a sufficient amount of stock to work the roads until the connection was made through to Decatur and Stevenson. By using the stock of the Louisville and Nashville Railroad Company, together with the Government stock, we were able to operate the roads successfully, but were not able to perform as much labor as could have been done with a larger stock.

Question. Had the Nashville and Louisville road as much rolling stock at this time as they have now?

I think not. They have been building cars and have purchased some additional engines. Their stock was inadequate at that time to carry the whole supplies of the army.

Question. Taking a month before Morgan's last raid, what would be the amount of tonnage the Nashville and Louisville road could have