As the reader progresses in his studies he will find Virgo full of interesting objects, including the celebrated “Field of the Nebulæ,” marked out by the stars Beta (β), Gamma (γ), Delta (δ), Epsilon (ε), and Eta (η); but to see the nebulæ, which are thickly scattered there, he must have a powerful telescope. Southwest of Virgo, but near the southeastern horizon, the quadrilateral figure of the constellation Corvus, the “Crow,” catches the eye. Its brightest star is of less than the second magnitude, yet by their apparent association the four stars immediately attract attention. One sees no special reason why the figures marked out by these stars should be likened to the form of a bird; but it was a raven to both the Greeks and the Romans, and similarly symbolical to other early peoples. The Arabs, however, at first called it the “Tent,” a designation which at least had a real resemblance for its basis. But these stars possess a charm independent of any fancied likeness to terrestrial things. In looking at them we do not think of the billions of miles which actually separate them from each other, but only of their seeming companionship. If, on the other hand, we force ourselves to consider the immense distances between them the mind is overwhelmed with the reflection that here, plainly staked out before us, is a field of space of absolutely unthinkable magnitude with its angles as clearly marked as if a celestial surveyor had placed corner-stones there. Note that the star Alpha (α), once the leader of the constellation in brightness as well as in alphabetical rank, is now so faint that you have to look for it where it shrinks, in half concealment, below one of its now brighter neighbors. These abasements are not very uncommon among the stars. Their glory, too, is mutable; they also have their ups and downs. The Arabic name for Alpha (α) was _Al Chiba_, or _Al Hiba_, meaning the “Tent.” Gamma (γ), now the brightest star of the constellation, was called _Gienah_, the “Wing,” and Delta (δ), _Algorab_, or _Al Ghurab_, the Arabic name for “Raven,” but Beta (β), which is perhaps as bright as Gamma (γ), has no special designation. From Corvus the eye wanders naturally to its neighbor on the west, Crater, the “Cup.” Both of these constellations rest on the back of the long serpentine Hydra. Crater is far less conspicuous than Corvus; but its resemblance to a cup is rather striking, although the imaginary vessel lies tipped up on its side with the open part toward the east. Among the many ascriptions of this starry cup in ancient mythology to various gods and goddesses, none is more interesting than that which made it the cup of Medea, thus including Crater among the numerous constellations which were associated in the imagination of the Greeks with their great romance of the Argonautic Expedition. Its brightest stars are only of the fourth and fifth magnitudes, and individually not worth much attention.