List of Illustrations (sizes are given in centimeters): 
7 
frontispiece. Original woodcut, Meudon, 1948 
insert. Original woodcut, Meudon, 1948, after sketch made in 1923 facing page 16 
page 
fig. 1. Max Ernst, Collage, 1921 (left: Arp smoking a pipe, right: Sophie Hen- 
riette Gertrude Taeuber wearing a cape) 41 
2. Marcel Janco, Cabaret Voltaire, 1917 41 
3. Painted Plaster Relief, 1918 41 
4. Painted Plaster Relief, 1918 4 1 
5. Augusto Giacometti, Summer Night, oil, 1918, coll. Dr. Erwin Poeschel, 
Zurich, photo Ernst Linck 42 
6. Viking Eggeling, Diagonal Symphony, pencil drawing, 1919-20 42 
7. Diagonal Symphony, pencil-drawing, 1919-20 43 
8. Sophie Taeuber, Dada Head, wood and oil, 1918, 33.5 cm. high, photo 
Marc Vaux 43 
9. Arp, Plant Organism, limestone on revolving base, 1936, 147 cm. high, 
coll. Maja Sacher, Pratteln, Switzerland 44 
10. Owl’s Dream, limestone on wooden base, 1937—38, 26.5 cm. high, 
coll. Curt Valentin, New York 53 
11. Vegetation, project for a relief, oil on canvas, 1946, private coll., 
Zurich 54 
12. Pre-Adamic Sculpture, limestone, 1938, 49 cm. high, coll. M. Ha- 
genbach, Basle 55 
13 a, b. Concrete Sculpture “Mirr,” bronze, 1936, 17 cm. high, coll. M. Ha- 
genbach, Basle 56