A painting of this substance was mimicked using the metal of wrecked planes in Paul Nash's World War I painting Totes Meer.
A 19th-century painting of this substance influenced the depictions of this stuff in the paintings of Group of Seven member Lawren Harris. Richard Westall painted a young Lord Nelson standing on this stuff, about to hit an animal with a rifle. Louis Legrand Noble wrote a book documenting a journey a painter took to paint this substance. A painting of this substance was mimicked using the metal of wrecked planes in Paul Nash's World War I painting Totes Meer. Pieces of wood and cloth lies diagonally across a backdrop of this substance that two animals crawl over in Edwin Landseer's painting Man Proposes, God Disposes. An object next to a (*) jutting mass of this substance in an 1823 painting has an inscription reading "HMS Griper" in allusion to William Parry. Edwin Church's painting of shapes of this substance references the death of Sir John Franklin. For 10 points, Caspar David Friedrich painted a "Sea" of what substance found at the North Pole?
A 19th-century painting of this substance influenced the depictions of this stuff in the paintings of Group of Seven member Lawren Harris.
arctic ice [or icebergs; accept snow until "Westall" is read, but prompt after]