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
Liquid Acrobat as Regards the Air instead. Gerry Conway, a drummer of Fairport Convention appears on the album. The most ambitious track is also its lengthiest. "Darling Belle", the track Williamson said "came to me in a dream", is composed of three-way vocals and spoken-word. Heron would vocalize and McKechnie would mimic his words with her high-pitch vocals. It tells the story of a woman from childhood to old age. "Tree" is a remake of the song "The Tree" from the band's first album. Liquid Acrobat as Regards the Air Liquid Acrobat as Regards the Air is the ninth album by the Incredible String Band. It