Note 195 — LETTER V
Reading edition
The ascent of the South Pass is so gradual that without instruments it is difficult to know when one attains the summit. See Wyeth's Oregon, in our volume xxi, p. 58, note 37.—Ed.
Reading edition
The ascent of the South Pass is so gradual that without instruments it is difficult to know when one attains the summit. See Wyeth's Oregon, in our volume xxi, p. 58, note 37.—Ed.