Castilla elastica Castilla elastica Castilla elastica, the Panama rubber tree, is a tree native to the tropical areas of Mexico, Central America, and northern South America. It was the principal source of latex among the Mesoamerican peoples in pre-Columbian times. The latex gathered from "Castilla elastica" was converted into usable rubber by mixing the latex with the juice of the morning glory species "Ipomoea alba" which, conveniently, is typically found in the wild as a vine climbing "Castilla elastica". The rubber produced by this method found several uses, including most notably, the manufacture of balls for the Mesoamerican ballgame "ōllamaliztli". The Aztec
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