St.-Petersbourg: Commissionnairs de l'Academie Imperiale des sciences, 1885. 29p., folded map with spot color, 13x9.5 inch fascicle, paperstock only slightly better that newsprint and is very toned and fragile. Terminal two leaves (not part of this text, but preliminary to another Academie publication) are quite edgeworn with a wide marginal stain, which fortunately does not touch the map, as it was folded narrow. Reading copy. Memoirs de l'Academie Imperiale des Sciences de St.-Petersbourg, VII serie. Tome XXXII No. 18 et dernier.