London: Published for the Author by Edward Arnold for private circulation, 1910
First Edition. 8vo (23cm) Half-title, titlepage, (viii), 148 pp. Two folding maps and numerous text photographs. Original pale red cloth, discoloured in places, spine lettered in gilt. Head and tail of the spine rubbed. Ex.libris. A, Dorothy Tregoning (wife of the engineer at Iquitos, who they meet on the journey and describe in the book). An author’s compliments slip tipped in to the front end paper. A VG+ copy.