The Ascent of Vesuvius; Henry Tresham; 1751-1814; British; 1785 to 1790; Watercolor and graphite on medium; slightly textured; cream laid paper; Sheet: 17 5/8 x 27 5/8 inches (44.8 x 70.2 cm); ash; climbers; clouds; genre subject; geology; hats; hiking; landscape; men; rocks (landforms); science; smoke; steam; sticks; tourism; travelers; volcano; Europe; Italy; Vesuvius