"Fleuriot de Langle" . . "Experiment" . . "1787" . . "Astr\u00E9e" . . "de Langle" . . . "1744" . "Paul Antoine Fleuriot de Langle" . . . . "Capt. de Langle" . "Paul Antoine Fleuriot de Langle" . . . . . "1787" . . . . "Astrolabe" . . . . . . . "Kingdom of France" . . . . . "1758" . .