Note 24 — Chapter I · THE TRANSPORTATION PROBLEM.
Reading edition
The railway starts from Callao at a height of 448 ft. above sea level, and at 104½ miles distance it passes through the summit tunnel at a height of 15,645 ft. above that level.
Reading edition
The railway starts from Callao at a height of 448 ft. above sea level, and at 104½ miles distance it passes through the summit tunnel at a height of 15,645 ft. above that level.