End of May: Mary Reynolds is up from Villefranche for a few weeks, so we are seeing a bit of her and Marcel Duchamp. (CF, Calder to parents, c. 5 June)

June: Calder is invited to join Abstraction-Creation. (Calder 1966, 114; CF, Calder to parents, 1 July)

July: Calder's wire sculpture is included in an exhibition of Novembergruppe at Kuenstlerhaus, Berlin. (CF, exhibition file)

12 July: Calder writes his parents of his new work: I have been making a few new abstractions which have certain movements combined with their other features. I think there is something in it that may be good. (CF, Calder to parents, 12 July)

4 August-11 September: The Calders visit Palma de Mallorca, staying at the Hotel Mediterraneo. They call on the Juncosas, Pilar Miro's family. After a month in Paguera, they return to Paris. (CF, Calder to parents, 31 July, 18 September; Calder 1966, 122-123)

August: Harrison of Paris publishes Fables of Aesop, According to Sir Roger L'Estrange, containing fifty illustrations by Calder. (CF, project file)

23 October-22 November: Calder exhibits four sculptures in "Association Artistique les Surindependants" at Parc des Expositions, Porte de Versailles, Paris. (CF, exhibition file)

29-30 October: Calder performs Cirque Calder in his studio, 14 rue de la Colonie. (FJM, Calder to Miro, 1931)

Fall: Using cranks and small electric motors, Calder concentrates on making mechanized abstract sculptures. (Calder 1966, 126)

Fall: Marcel Duchamp visits the studio at 14 rue de la Colonie again and sees Calder's latest works. There was one motor-driven thing, with three elements. The thing had just been painted and was not quite dry yet. When he put his hands on it, the object seemed to please him, so he arranged for me to show in Marie Cuttoli's Galerie Vignon, close to the Madeleine. I asked him what sort of a name I could give these things and he at once produced Mobile. In addition to something that moves, in French it also means motive. (Calder 1966, 127)