Note 25 — SECOND JOURNEY (continued 2)
Reading edition
Considering the pinnacle of Mount Washington as the centre of a circle of vision, the greatest distance I have been able to see with the naked eye, in nine ascensions, did not probably much exceed one hundred miles. This being half the diameter, the circumference would surpass six hundred miles. It is now considered settled that Katahdin, one hundred and sixty miles distant, is not visible from Mount Washington.