In the southern division is seen _Mare Nectaris_, the Sea of Nectar, over whose soft heaving billows she is gently wafted by Love's caressing winds, "Youth on the prow and Pleasure at the helm." Not far off is _Mare Fecunditatis_, the Sea of Fertility, in which she becomes the happy mother of rejoicing children.

A little north is _Mare Crisium_, the Sea of Crises where her life and happiness are sometimes exposed to sudden, and unexpected dangers which fortunately, however, seldom end fatally.

Far to the left, near the men's side, is _Mare Vaporum_, the Sea of Vapors, into which, though it is rather small, and full of sunken rocks, she sometimes allows herself to wander, moody, and pouting, and not exactly knowing where she wants to go or what she wants to do.

Between the two last expands the great _Mare Tranquillitatis_, the Sea of Tranquillity, into whose quiet depths are at last absorbed all her simulated passions, all her futile aspirations, all her unglutted desires, and whose unruffled waters are gliding on forever in noiseless current towards _Lacus Mortis_, the Lake of Death, whose misty shores "In ruthless, vast, and gloomy woods are girt." So at least Ardan mused as he stooped over Beer and Maedler's map.

Did not these strange successive names somewhat justify his flights of fancy?
Surely they had a wonderful variety of meaning.