Trudy vserossiiskago sezda khudozhnikov v Petyrograd Dekabr 1911-Yanvar 1912' [All-Russian Congress of Artists in Petrograd from December 1911 to January 1912]. Petrograd: [Golike and A. Vilborg, n.d.]. 3 volumes. Folio (350 x 253mm. and smaller). Plates, occasional illustrations. Later grey cloth with original paper wrappers mounted on the upper and lower covers (volumes I and III) or orginal wrappers (volume II). Condition: light overall toning, occasional small marginal tears to volume II; light soiling to volumes I and III, volume II with stitching broken, covers detached and lightly soiled, backstrip lacking. A historically important publication, this chronicle of the All-Russian Congress of Artists contains the first appearance of Kandinsky's seminal essay, 'O dukhovnom v iskusstve (zhivopis)' [On the Spiritual in Art], which he delivered in December (pp. 47-52). Very rare.