[Paris, Gauthier-Villars, 1930.] 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 190, No 6, Entire issue offered. No backstrip, stamp to first leaf. Pp. 349-51. [Entire issue: Pp. 337-408].
First printing of Lusin's important paper on uniformization in set theory. ""The more fundamental uniformization property was introduced in [the present paper]. Lusin established there some difficult uniformization theorems"". (Moschovakis, Descriptive Set Theory)