It is not possible during the construction of a railroad to tell what it costs per mile because all the foundation work, the construction of bases from which to work, the equipment for construction, and much of the material is a charge which must be spread over the entire completed line. The best estimate that can be made to-day as to the newly constructed road is that it has cost between $70,000 and $80,000 per main-line mile, or between $60,000 and $70,000 per mile of track. This cost per mile includes the building of the most difficult and expensive stretch of line along the entire route from Seward to Fairbanks--that running along Turnagain Arm, which is sheer rock rising precipitously from the sea for nearly 30 miles. There are miles of this road which have cost $200,000 per mile. Even to blast a mule trail in one portion of this route cost $25,000 a mile. The only Government-built railroad--that across the Isthmus of Panama--cost $221,052 per mile. The only two recently built railroads in the United States are (1) the Virginian, built by H.H. Rogers, which cost exclusive of equipment $151,000 per mile, with labor at from $1.35 to $1.75 per day and all machinery, fuel, rails, and supplies at its door, and (2) the Milwaukee line to Puget Sound, which is estimated as having cost $130,000 per mile exclusive of equipment. The work has been conducted with its main base at Anchorage, which is at the head of Cook Inlet. The point was chosen as the nearest point from which to construct a railroad into the Matanuska coal fields. That was the primary objective of the railroad, to get at the Matanuska coal. From Anchorage it was also intended to drive farther north through the Susitna Valley and across Broad Pass, and to the south along Turnagain Arm toward the Alaska Northern track. To secure coal for Alaska was the first need. So in addition to Anchorage as a base, one was also started at Nenana, on the Tanana River, from which to reach the Nenana coal fields lying to the south. If these two fields were open, one would supply the coast of Alaska and one the interior. This program has been acted upon, with the result that the Matanuska field is open to tidewater with a downgrade road all the way. The Nenana road has been pushed far enough south to touch a coal mine near the track, which may obviate the immediate necessity for reaching into the Nenana field proper. There is an open stretch across Broad Pass to connect the Susitna Valley with the road coming down from Nenana. This gap closed, there will be through connection between Seward and Fairbanks. MATANUSKA COAL. By decisions of the Commissioner of the Land Office all of the claims in the Matanuska coal field were set aside, and by act of Congress a leasing bill was put into effect over the entire field. Under this law a number of claims must be reserved to the Government. The field was surveyed, and some of the most promising portions of the field have been so reserved.