Philadelphia, PA The Philadelphia Museum of Art is apparently not immune from the recession. Like other leading institutions of the arts, the museum has seen some of its income fall sharply. In February, management announced that in order to close an expected $1.7 million budget deficit the museum would need to lay off 15 staff, raise ticket prices by $2 to $6 each, and reduce Free Sundaysto only once a month. The cruelest cut was announced months later, in June, when museum guards earning between $16,000 and $20,000 a year learned they would not receive their promised $0.25 an hour raise.