Filling a balloon with hydrogen gas Size:XS: 30 x 20cm Figures are dwarfed by the

Figures are dwarfed by the size of the pillars

Map of the ancient earthworks at Loughton Camp made around AD 52 in Epping Forest

on Tuesday 20th July

1809 during a banquet

The scene is described below the image in English and French

Filling a balloon with hydrogen gas Size:XS: 30 x 20cm Figures are dwarfed by theScene showing the inflation of a balloon by hydrogen gas piped from a barrel. The gas was produced by the reaction of sulphuric acid and iron. A preliminary balloon of this type was flown at the Champ de Mars in Paris, France on the 27 August 1783 an event witnessed by Benjamin Franklin. Plate 3 from the book Description des expriences de la machine arostatiques de MM. de Montgolfier, by Faujas de Saint Fond (Paris, 1783). Inscribed below : 'Bertault