Paris, France/paris6-246
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[During the siege of Paris by the Prussians] he escaped in a balloon 2 December 1870.
He discovered a method of analyzing the solar protuberances of the sun during an eclipse and used this method in Guntur 18 August 1863 [to observe the previously unseen spectral line of helium].
He climbed Mount Blanc to found an observatory 3 September 1893. [He climbed Mount Blanc many times, even with the infirmities of old age.]"
