balloons, which he has succeeded in following to the stupendous height of 97,700 feet, or 49½ miles from the surface of the earth, that is, three and a third times as high as the summit of Mount Everest—the highest mountain in the world.
After carrying on numerous investigations in the Mediterranean and in the North-east Trades, the Prince of Monaco in 1906 proceeded on his third voyage to the Arctic Regions, his destination being the Greenland Sea off the north-west of Spitsbergen. In Spitsbergen itself, he was to land a Scottish party under the author's leadership for the detailed survey of Prince Charles Foreland, and a Norwegian party under Captain Isachsen for the survey of part of the mainland; while he himself, associated with Professor Hergesell of Strasburg, was to explore the higher atmosphere. On July 13, 1906, I have interesting recollections of being one of a party of three, the other two being Professor Hergesell and Captain H. W. Carr, R.N.R., for so many years the Prince's commander and aide-de-camp, who conducted the theodolite work ashore at Deere Sound (recently erroneously called King's Bay), whilst the Prince of Monaco was on board the Princesse Alice, attending to the liberation of a pilot balloon—the first that was ever set free in the Arctic Regions. While Professor Hergesell fol-
