Year: 
1918

Key to Objects on the DrawingsNorth polar capMare AcidaliumBaltiaTempeHydaspesIndusAromatum PromontoryAuroræ SinusMargaritifer SinusDeucalionis RegioFastigium AryaSinus SabæusWhite RegionSketch published in JRASC, 1918.

Mars 19180320-2130