Keywords: Descente du ballon le Pôle Nord à Auneau.jpg en Diagram shows 1 Trajectoire de l'aérostat elévation and 2 Courbe de trainage plan to document the barometric measurements for altitude and distance covered made by Gaston Tissandier in the balloon Pôle Nord during voyage from Champ de Mars Paris to Anneau June 26-27 1869 Source A G Renstrom LC staff 1981-82 PUBLISHED Paris Imp Fraillery 1869 Imgae retrieved http //hdl loc gov/loc pnp/ppmsca 02508 here G Tissandier / gravé par Erhard 1869 PD-old 19th-century diagrams |