Ficus elastica leaves the latex of the plant oozing, is coated with cuttings hormones and tightly wrapped with moist foam. The whole is covered with a plastic film and left a few months at the end of which new roots have developed from the axillary buds. The stem is then weaned and the new plant can be repotted. All parts of the plant contain an abundant milky white latex, which has been tested for use in the manufacture of rubber, but without economic and technical results; the rubber is actually produced from the sap of the rubber tree . In cultivation, it
But what about the noise of crumpling paper which he used to do in order to paint the series of "Papiers froissés" or tearing up paper to make "Papiers déchirés?" Arp was stimulated by water (sea, lake, and flowing waters like rivers), forests the letters sent as response to one of John Cage's letters made by Greta Ströh, the director of the Arp Foundation at the time. Even though Cage's inspiration came through the works by Arp, the composition is dedicated to Les Percussions de Strasbourg. This piece features what are often called by John Cage "sounds of nature", which consist of sounds that resemble environments, and use word in his music, therefore blurring the line between music and literature, as he did in "Child of Tree", "Food" and "Ryoanji". This piece was finished in August 1985 and was published that same year