Year: 
1918

Key to Objects on the DrawingsNorth polar capCerauniusTharsisTithonius LacusSolis LacusThaumasiaAonius SinusBosphorus GemmatusAuroræ SinusOphirGangesLunæ LacusTempeSketch published in JRASC, 1918.

Mars 19180329-2130