Holden wants to see Phoebe, and he goes to look for her in the park because he remembers that she often roller-skates there on Sundays. He meets a girl who knows Phoebe. At first, she tells him that his sister is on a school trip to the Museum of Natural History, but then she remembers that the trip was the previous day. Nevertheless, Holden walks to the museum, remembering his own class trips. He focuses on the way life is frozen in the museum’s exhibits: models of Eskimos and Indians stand as though petrified and birds hang from the ceiling, seemingly in mid-flight. He remarks that every time he went to the museum, he felt that he had changed, while the museum had stayed exactly the same.