THIRD QUADRANT.
Mare Nubium (the greater portion), 5.
,, Humorum, 6.
Oceanus Procellarum (the S. portion), 5.
Sinus Medii (a small portion), 6.
FOURTH QUADRANT.
Mare Foecunditatis (the greater portion), 5.
,, Nectaris, 7.
,, Tranquilitatis (a small portion), 5.
,, Australe, 127.
,, Smythii (a portion), 39.
Sinus Medii (a portion), 6.
LIST OF SOME OF THE MOST PROMINENT MOUNTAIN RANGES, PROMONTORIES, ISOLATED MOUNTAINS, AND REMARKABLE HILLS.
FIRST QUADRANT.
The Alps. The western portion of the range.
The Apennines. The extreme northern part of the range.
The Caucasus.
The Haemus.