Shelley M. Bennett talks about her new book, “The Art of Wealth: The Huntingtons in the Gilded Age,” which explores how Collis, Arabella, Archer, and Henry Huntington collected works of art in the decades around 1900 and created lasting legacies through their philanthropy. Bennett is the former curator of European art at The Huntington. She is introduced by Steve Koblik, president of The Huntington.