In September a judge will hear further arguments about whether the Barnes Collection ought to be allowed to move to downtown Philadelphia. “On the face of it, opponents of the move appear overmatched by the trustees, the deep-pocketed foundations subsidizing the plan, the Philadelphia tourist industry, and many cultural leaders. But they have begun to mobilize for what might be the Barnes loyalists’ last chance to keep the foundation’s collection in Merion and its school intact. The mobilization has taken two forms, fund-raising and public relations.”