21.   But if museum directors agree that the rules have changed for future acquisitions, they are not in complete harmony about what to do about the past.

22.   But some museum directors, collectors and even government officials are not waiting to question their age-old practices.

23.   But that generation of deceived collectors and museum directors has passed from the scene.

24.   But the arts administrators, museum directors and authors liked what they managed to hear.

25.   But the new museum director had not been aware of what the exhibition would contain before it opened, said a museum spokeswoman, Annmarie Erickson.

26.   Cunningham was also amazed that the museum director could determine that one painting was better than another, Surovek said.

27.   During his long career Rathbone was an enthusiastic art evangelist and a pace-setting museum director who was twice president of the Association of Art Museum Directors.

28.   Finding adequate exhibition space for permanent collections is a constant juggling act for most museum directors.

29.   For the Whitney, the appointment is important and Maxwell L. Anderson, the museum director, said it took many months of discussions.

30.   From big money to location to behind-the-scenes dialogues involving museum directors and curators, the process of choosing a museum locale is both intricate and, often, invisible.