LONDON.- The National Gallery’s spring exhibition, Turner Inspired: In the Light of Claude, is the first major presentation of Claude’s influence on Turner. Turner’s daring free painting technique and radical approach created a revolution in painting at the beginning of the 19th century. The inspiration for these dramatic developments was the 17th-century artist Claude’s mastery of light on canvas. This exhibition tells the story behind Turner’s inspiration and the revolutionary works that went on to inspire future generations of artists. The show reveals how Turner’s life-long desire to absorb all he could from the Old Master lay at the heart of his work. From the Roman Campagna-inspired views of the Thames Valley to paintings of the emerging industrial landscape, ‘Keelmen Heaving in Coals by Night’ (1835, National Gallery of Art, Washington), the exhibition