An Explanation of the Works of the Tunnel under the Thames from Rotherhithe to Wapping, London: W. Warrington, 1838, oblong 12° (4¼ x 5in.), ASSOCIATION COPY, the front blank inscribed in the recipient's hand "Presented to Professor Schmidt by Monsieur Brunel London August 4th 1838," 2 folding engraved maps (one cleanly torn) and 7 woodcut illustrations, one with overlay, 2 folding, contemporary marbled wrappers (a little worn), later inscription on front pastedown.