Note 8 — Chapter XVI
Reading edition
The height of the upper range from the level of the sea, as obtained by Captain Smyth from a sea base, was 1575 feet.—The dip of the visible sea horizon, repeatedly measured by us with a theodolite from the summit, was 42′ 00″, which, adding ¹⁄₁₄ for terrestrial refraction, gives 2003 feet for the height—the mean of these, which we have adopted, is 1805 feet.