A full account has recently been published of one of the longest balloon voyages ever undertaken. (In point of duration it has been beaten at least once.) The ascent was made on October 19th last, at Leipzig, in the great balloon belonging to MM. L. Godard and E. Surcouf, which had been used for captive work throughout the summer at that place. At the close of the Exhibition it was decided to let the balloon go free. It was therefore specially fitted for the event, the large annular car being replaced by a smaller rectangular one. A novel feature was an “equilibriator” or guide rope of steel wire with a leaden core. This was 11 mm. in diameter, 50 metres long, weighing 25 kilogs, and was attached to the end of a hempen rope 100 metres long and 25 mm diameter.