Text Volume: [4], viii, 474, [1] pp. 6 folding charts. (8vo) 20.4x12.8 cm. (8x5"), period black half morocco and cloth. Atlas Volume: Title leaf, dedication leaf and 12 engraved plates including 9 views, 2 maps and one chart (colored), contents leaf at rear. 20.8x31.4 cm. (8¼x12¼"), original cloth-backed boards. First Edition.

Text and atlas volumes of Humboldt's geologic and volcanic survey of Mexico and part of the Andes. Rare.