On introducing the feeblest achromatic lens we possessed, we found that the water, whose boundary we had just discovered, answered in general outline to the Mare Nubicum of Riccoli. Fairer shores never angel coasted on a tour of pleasure. A beach of brilliant white sand, girt with wild, castellated rocks, apparently of green marble, varied at chasms, occurring every two or three hundred feet, with grotesque blocks of chalk or gypsum, and feathered and festooned at the summits with the clustering foliage of unknown trees, moved along the bright wall of our apartment until we were speechless with admiration. A column farther on, in a wonderful valley of this wonderful moon, life at last burst upon the seers: In the shade of the woods on the southeastern side we beheld continuous herds of brown quadrupeds, having all the external characteristics of the bison, but more diminutive than any species of the _bos_ genus in our natural history. Its tail was like that of our _bos grunniens_; but in its semicircular horns, the hump on its shoulders, the depth of its dewlap, and the length of its shaggy hair, it closely resembled the species to which I have compared it. It had, however, one widely distinctive feature, which we afterward found common to nearly every lunar quadruped we have discovered; namely, a remarkable fleshy appendage over the eyes, crossing the whole breadth of the forehead and united to the ears. We could most distinctly perceive this hairy veil, which was shaped like the upper front outline of the cap known to the ladies as Mary Queen of Scots cap, lifted and lowered by means of the ears. It immediately occurred to the acute mind of Dr. Herschel that this was a providential contrivance to protect the eyes of the animal from the great extremes of light and darkness to which all the inhabitants of our side of the moon are periodically subjected. The next animal perceived would be classed on earth as a monster. It was of a bluish lead color, about the size of a goat, with a head and beard like him, and a _single horn_, slightly inclined forward from the perpendicular. The female was destitute of the horn and beard, but had a much longer tail. It was gregarious, and chiefly abounded on the acclivitous glades of the woods. In elegance of symmetry it rivaled the antelope, and like him it seemed an agile, sprightly creature, running with great speed and springing from the green turf with all the unaccountable antics of the young lamb or kitten.