Praha: Nakladatelstvi Vl. Orel, n.d., 1931? First Czech Edition. Octavo (19cm.); original cloth in photo-illustrated dust jacket; 280pp. Spine rather heavily cocked, jacket extremities a bit shelf worn, rear panel shows some dustiness, front hinge starting to crack but holding, else a Near Very Good copy. Exceedingly scarce Czech edition of this French science fiction novel, translated by Karla van ary and boasting a strikingly photomontaged dust jacket. OCLC locates one copy as of January, 2017, in the Czech Republic; not in the NUC.