The Dulwich Picture Gallery has many good scans from its amazing collection online, but the site is slow and is hampered by inconsistent searching and the inability to "browse" effectively. Here are the works we have catalogued by Nicolas Poussin:   Nicolas Poussin at the Dulwich Picture Gallery Rinaldo and Armida The Nurture of Jupiter The Return of the Holy Family from Egypt The Translation of Saint Rita of Cascia The Triumph of David Venus and Mercury