If we didn’t know much about Eugen Gabritschevsky the person, and limited ourselves to the reproductions of his work in the show’s valuable and handsome accompanying catalog—it presents many more pictures than were in the museum’s exhibition—we might not at first assume that their author was a schizophrenic patient living in a psychiatric hospital. We might, rather, wonder whether we were encountering a newly discovered modern master, a kind of Paul Klee, say, whose each small-size picture feels like its own self-contained world.