Arp felt that he could incorporate chance within artistic production, comparing the role of the artist to a plant bearing fruit. According to the Laws of Chance shows Arp playing with random composition, in this case dropping painted pieces of paper onto a surface. Torn Woodcut was made in a similar way in 1954, using the pieces of a Dada print he had made in 1920.
http://www.wikiart.org/en/jean-arp/according-to-the-laws-of-chance-1933