The Phillips Collection by European masters such as Gustave Courbet, Pierre Bonnard, Georges Braque, Jacques Villon, Paul Cézanne, Honoré Daumier, Edgar Degas, Vincent van Gogh, Paul Klee, Henri Matisse, Claude Monet, and Pablo Picasso. In 1923, Phillips purchased Pierre-Auguste Renoir's impressionist painting, "Luncheon of the Boating Party" (1880–81), the museum’s best-known work. From the 1920s to the 1960s, Phillips re-arranged his galleries in installations that were non-chronological and non-traditional, reflecting the relationships he saw between various artistic expressions. He presented visual connections—between past and present, between classical form and romantic expression—as dialogues on the walls of the museum. Giving equal focus to American
Conservation of painted turtles prey in turtle ponds, herbicides hurting aquatic vegetation, or just generalized water pollution impacting turtles. However, no definite impacts have been quantified. Outdoor recreation also affects turtles. Boating traffic near basking sites can disturb painted turtles. Some turtles die indadvertantly on fisherman's hooks—the turtles are noteworthy for stealing bait. Oregon is considering stream access modifications to reduce wanton shooting. Gervais notes that turtle research itself impacts the populations. Many turtle surveys have been done, which did not result in publication. She advocates developing computer-based population models instead, to better understand evolution of painted turtle numbers, and reserving catch and release