Travels Amongst the Great Andes of the Equator.

First American Edition, published same years as the First English, of what is often considered Whymper's magnum opus. Whymper "travelled in 1879–80 to Ecuador with his former Matterhorn rival J. A. Carrel and the latter's cousin Louis Carrel, to test the physiological effects of low pressure at high altitudes and the phenomenon of 'mountain sickness'. They twice climbed Chimborazo (20,498 feet), the highest mountain in Ecuador, and other peaks including Cotopaxi (19,613 feet), an active volcano. Whymper also surveyed the area and collected over 8000 zoological and botanical specimens" (ODNB). The book combines a popular account of his ascents with his detailed scientific observations.

4to. Original green pictorial cloth on bevelled boards, title in gilt to upper board and spine. Frontispiece and 19 other plates, illustrations to the text. 4 maps, 3 of them folding, one in an end-pocket. Light browning, a little rubbed, but overall very good.