Pierre PUVIS DE CHAVANNES (1824-1898). L.A.S., Sunday April 21, to a friend; 2 pages in-8. "For more than six weeks I have been on a regime of such rigor that outside of it everything is an excess - as in everything I abhor half-measures in order to remain absolutely faithful to it. Reunions of loved and sympathetic people being the most dangerous in such cases, I ask your old friendship to excuse me"...