Published on the occasion of an exhibition held at the Palazzo Blu, Pisa, Italy, September 26, 2015-January 17, 2016.
Text in Italian; includes letters by Jean Baptiste Etienne Poussielgue, Stanilas-Pierre-Albine Poussielgue Hersemule de Laroche and Adélaïde Poussielgue in Italian translation from French.