In 1948 I tore a large sheet of brown paper to get little rectangular pieces that I piled up, and with which I erected a rather unstable column. In 1954 I straightened out a piece of corrugated cardboard with a surface area of a square meter. Since 1957, without interruption, I have been smoothing out the silver paper from cigarette boxes. In 1962 I began to detach the filters from cigarettes, with which I created long strips; in the case of the Murattis I was startled to note an extremely interesting granular stratification. In 1958, under the guidance of Mr. Sergio Vercellino, a resident of Vagliumina (Biella) and an agriculturalist, I cut, with a scythe, about 3 m(3) of grass. In 1950 about twenty small ice cream glasses, which I collected with some difficulty, were inserted one inside the other so as to form an arch. In the same year I filled a little plastic box with some twelve little matchboxes, and with a great deal of difficulty I bought a packet of Marlboro which I soon took apart, flattened and stretched out. In 1949 I had rolled up a meter of yellow fabric and put my little finger in it to form a kind of tower of Babel. In 1953 I took a red or blue rubber band...