sentences:  Each of the 15 lithographs features a photograph of the surface of the River Thames that has been annotated with many small white numerals that correspond to a bar of footnotes that runs along the lower border of each image.Félix González-Torres had the opportunity to view Horn's sculpture "Forms from the Gold Field" in 1990 at the Museum of Contemporary Art, Los Angeles.In 1993, he made "Untitled (Placebo-Landscape-for Roni)".