Legueu, Stanislas Sister Gertrude Mary: A Mystic of our own Days; the Sister of the Community of Saint Charles, Angers, who Foretold the Conversion of Caldey and Saint Bride's; Extracts From her Diary Laisant, Charles-Ange Introduction à la méthode des quaternions Laisant, Charles-Ange Introduction à la méthode des quaternions Câlin Câline Nid d'Ange Charles Taupe och Ciel Urseau, Charles Cartulaire Noir De La Cathédrale D'angers Legueu, Stanislas Sister Gertrude Mary: A Mystic of our own Days; the Sister of the Community of Saint Charles, Angers, who Foretold the Conversion of Caldey and Saint Bride's; Extracts From her Diary (Charles-Ange), Laisant C.-A. Mathematics D'Angers, Pierre-Jean David David D'angers Et Ses Relations: Correspondence Du Maitre Avec Victor Hugo, Lamartine, Chateaubriand, De Vigny, Lamennais, Balzac, Charlet, Louis Et ... Rauch, Tieck, Berzelius, Schlegel, Etc...