Hour"), which he created by uncovering within a wooden beam the tree as it was when it was his own age. The trunk and branches are only partially uncovered and reveal their natural origin while remaining partly incorporated in the geometrical structure of the beam. "Rise trees of the wood, of the forest" wrote the artist in a text of 1979, "rise trees of the orchards, of the avenues, of the gardens, of the parks, rise from the wood that you have formed, take us back to the memory of your lives, tell us about the events, the seasons, the contacts of your existence. Take us back to the woodland, the darkness, the shadow, the scent of the undergrowth, the wonder of the cathedral that is born in the wood land". 1970s In 1970, Penone created two sculptures, titled Albero di dodici metri ("Trees of Twelve Metres"), as performances during Aktionsraum 1 in Munich, Germany. For this work, Penone carved an existing tree down to a much smaller, more bare beam, and then created new branches so as to transport the tree back to an earlier period of its life. Another Albero di dodici metri, dating from 1980, was shaved out of a beam to its full height, with the exception of a part at the top of the plant that used to form the base of the sculpture. It was exhibited at the Solomon R. Guggenheim Museum of New York in 1982 and at the Musée des Beaux-Arts of Nantes in 1986. Other examples of trees, carved in different ways out of beams, make up the various installations titled Ripetere il bosco ("Repeating the Forest") at the Stedelijk Museum, Amsterdam, in 1980 and at the Castello di Rivoli Museo d'Arte Contemporanea in 1991. In his impressive sculpture Cedro di Versailles ("Cedar of Versailles") of 2004, the profile of the young tree is hewn in the trunk of an ancient cedar uprooted by the storm that wrought havoc in the Forest of Versailles in December 1999. In Rovesciare i propri occhi ("Turning One's Eyes Inside Out"), an action of 1970, Penone wears mirror-finish contact lenses that interrupt the channel of visual information between the individual and his surroundings, entrusting to photography the possibility of seeing in the future the images that the eye should have collected. "The work of the poet," Penone wrote, "is to reflect like a mirror the