L'ignorance prouvee. Ou les evenements de la journee du 11 juillet 1784 au Luxembourg. French cartoon ridicules the attempt of Abbe Miollan and Janinet to ascend in a hot air balloon by showing the balloon on fire and billowing smoke while being inflated on July 11, 1784 at the Luxembourg gardens in Paris. On the left, a woman (Physics personified) is whipping the bare bottom of Janinet (L'Asinet) as he attempts to put out the flames. On the right, a cat (Abbe Miollan) is taken into custody by the Swiss Guard. Many upset spectators surround the balloon. Date 1784?.