Salomon-Auguste Andree (centre) (1854-1897), Swedish engineer, with the men who accompanied on the fatal voyage to explore the North Pole (1897). On 11 July 1897 they set out by balloon. A carrier pigeon message received a few days later was the last trace of the expedition until their remains were found 33 years later east of Spitsbergen. From La Navigation Aerienne by J Lecornu (Paris, 1910).