by assuming that he was.) Curator Edward Fry was consequently fired for his support of the work. Following the abrupt cancellation of his exhibition and the trouble it had caused with the museum, Haacke turned to other galleries, to Europe and his native country, where his work was more often accepted. Ten years later he included the Shapolsky work—by then widely known—at his solo exhibition at the New Museum of Contemporary Art, entitled "Hans Haacke: Unfinished Business". At the John Weber gallery in New York, in 1972, on two separate occasions, Haacke created a sociological study, collecting data from gallery visitors. He requested the visitors fill out a questionnaire with 20 questions ranging from their personal demographic background information to opinions on social and political issues. The results of the questionnaires were translated into pie charts and bar graphs that were presented in the gallery at a later date. They revealed, among other things, that most visitors were related in some way to the professions of art, art teaching, and museology, and most were politically liberal. In 1974, Haacke submitted another proposal that was subsequently rejected for an exhibition at the Wallraf–Richartz Museum in Cologne. The work described a well-documented history of the ownership (with individual biographies of each of the owners) of Manet's painting Bunch of Asparagus in the museum's collection, narrating how it came into the collection, and in which the Third Reich activities of its donor were revealed. Instead, the work was exhibited in the Paul Menz Gallery in Cologne with a color reproduction in place of the original. In 1975, Haacke created a similar piece to the Manet project at the John Weber gallery in New York, exposing the history of ownership of Seurat's Models (Les Poseuses) (small version). In the same manner as the previous installation, this work showed the increase of the value of the work as it passed from one patron to another. Also In 1975, he created one of his most memorable installations, entitled On Social Grease. The work, which takes its title from a speech by a corporate head of one of the world's major oil companies, is made up of carefully fractured plaques exhibiting quotes from business executives and important art world figures. These plaques display their opinions on the system of exchange between museums and businesses, speaking directly to the importance of the arts in business practices. In 1978,