Between 1923 and 1929, Dr. Albert C. Barnes built the largest collection of Rousseau canvases in the world, 18, integrating them into the educational program of the newly chartered Barnes Foundation. The Doctor and the Douanier is an archival exhibition telling the story of Dr. Barnes connection to the artist and his work and the discourse surrounding both. Archival correspondence, invoices, and photographs create a chronology of Barness Rousseau collection. Meanwhile, notes, drafts, and articles speak to the reactions of Barnes and his contemporaries to the artist and his oeuvre, showing how interpretations and attitudes are shaped and how they shift over the years. The Doctor and the Douanier is a companion to Henri Rousseau: A Painters Secrets, on view in the lower level Roberts Gallery until Sunday, Feb. 22. The Barnes Foundation is located at 2025 Benjamin Franklin Parkway in Philadelphia. For reservations, visit www.barnesfoundation.org.