Note 239 — Chapter XXVII · COMPARATIVE COST OF WATER AND LAND TRANSPORT.
Reading edition
According to the returns published by Poor, the total tonnage carried was 589½ million tons, and the number of ton miles was 70,423 millions. The gross receipts from freight were 639½ million dollars, and by dividing the ton-miles into the gross receipts, we get at the approximate ton-mile average.