How does a culture without a museum preserve its own history and tell its own story? That’s just one question implied by Khalil Rabah’s at once funny and poignant ongoing project, the Palestinian Museum of Natural History and Mankind. With departments spanning fields such as botany, geology and paleontology, it exists principally as a newsletter, whose pages Rabah has reproduced for this show in large paintings. Just as Palestinians want a state, the artist told A.i.A. during a visit to the show, they want a museum, but it’s no simple matter, as this slippery project demonstrates.