Maps of other worlds
Overview map of planet Mars with its dark lines not doubled / The doubling of the dark lines of planet Mars
Mars — map
Showing single and twin lines
French edition

Italian map. The same maps appeared in: G. Schiaparelli: Il Pianeta Marte. 1893. Natura ed Arte. 5/6 p41

Flammarion, C (1892) La planete Mars et ses condtions d'habilité. Paris, Gauthier-Villars et fils, Imprimeurs-libraries de l'observatoire de Paris.

Flammarion, C (1892) La planete Mars et ses condtions d'habilité. Paris, Gauthier-Villars et fils, Imprimeurs-libraries de l'observatoire de Paris.
Another Italian reproduction from "Le Piu Belle Pagine di Astronomia Popolare, Editore Ulrico Hoepli Milano 1953". National Library, Rome

German Edition
Russian Edition
The Hungarian edition from Pallas Nagylexikon (photo) 1896
The Hungarian edition from Pallas Nagylexikon (scan) 1896 Another scan

Italian edition, showing the twin canals