"Pennsylvania academy of the fine arts (Philadelphie, Pa.)." . . . . "Landscapes in art." . . "Peinture de paysage États-Unis." . . "Albany institute of history and art." . . . . . . . . . . . . . . . "Thomas Doughty, 1793-1856 : an American pioneer in landscape painting : [exhibition held at the Pennsylvania Academy of the Fine Arts, Oct. 19-Dec. 2, 1973, the Corcoran Gallery of Art, Dec. 14, 1973-Jan. 27, 1974, and the Albany Institute of History and Art, Feb. 14-Apr. 7, 1974]" . . . . . . "Thomas Doughty, 1793-1856; an American pioneer in landscape painting" . . . . . "Thomas Doughty, 1793-1856 an American pioneer in landscape painting"@en . "Corcoran gallery of art (Washington, D.C.)." . .