[57] For further information relative to this disease, see my communication to Wunderlich and Roser's "Archiv für Physiologische Heilkunde."
[58] See [page 153].
[59] By a nail is lost a shoe, by a shoe a horse, and by a horse a rider.
[60] According to Maclean, the elevation of Matucanas is 8026 feet above the level of the sea. I presume that this calculation refers to the village itself, which is situated about the eighth of a league from the tambo, and lies much lower.
[61] According to Maclean's calculation, the Tambo de Viso is 9072 feet above the sea.
[62] Maclean states the elevation to be 10,984 feet above the sea. Rivero makes it 9570, and Gay 10,408 feet. Gay's is the only measurement which in any manner corresponds with mine and Maclean's. In general Gay's calculations are between 600 and 800 feet higher than ours.
[63] Maclean makes it 15,543 feet; Gay, 15,924 feet; and Rivero, only 14,608 feet above the level of the sea.
[64] The Puenteros (Bridge Guides) are Indians who assist travellers in crossing these dangerous bridges.