London, Century Press & Simpkin, Marshall, Hamilton, Kent & Co., 1910 and 1912. First edition, first impression. Hardback. Near fine copies. A high tech voyage around the solar system. The second book is a sequel of sorts, but rather a second go at the ideas. A little bumping to the spines and some foxing to the prelims, but very nice copies overall. [10968, Hyraxia Books].