Autograph letter signed.
London, 29. I. 1889.
8vo. 2½ pp. on bifolium.
€ 850,00
To the "North American Review" on sending an article concerning aviation: "[...] For more than twenty years I have attentively followed aeronautic affairs, having had occasion to make an ascent for meteorological purposes, in company with Glaisher and a number of prominent French aeronauts, in the gigantic captive balloon which afterwards [...] escaped from its cable and came to grief [...] and it was through a suggestion I have made that the 'German Society of Aeronauts' was founded [...] P.S. I had at first chosen the title of 'Navigable Balloons', but I think 'Guidable Air-Ships' would be a correcter term [...]".
On headed paper.