Recently I discovered a typo in my posting on July 14, 2013 of "Poem 25" by Kurt Schwitters. My attempt to fix my typo led to accidental deletion of that post and so, I offer again this diagram-poem. The poem -- IS THIS REALLY A POEM? -- appears in Numerals: 1924 - 1977 -- gathered by Yale Professor of Art History Rainer Crone (1942-2016), published 1978 by the Yale University Art Gallery.
Poem 25 (elementary) by Kurt Schwitters, 1923