In 1867–1868 he published "La Terre; description des phénomènes de la vie du globe", in two volumes.During the 1870 siege of Paris, he was in the National Guard, while as a member of the Association Nationale des Travailleurs he published in the "Cri du Peuple" an article against the government of Versailles in support of the Paris Commune of 1871.Continuing to serve in the National Guard, now in open revolt, he was taken prisoner on April 5, and on November 16 sentenced to transportation for life; but, after changed in an ban as an exile.