Now direct your glass to the northernmost of the two little stars near Vega, the one marked Epsilon ([epsilon]) in the map. You will perceive that it is composed of two stars of almost equal magnitude. If you had a telescope of considerable power, you would find that each of these stars is in turn double. In other words, this wonderful star which appears single to the unassisted eye, is in reality quadruple, and there is reason to think that the four stars composing it are connected in pairs, the members of each pair revolving around their common center while the two pairs in turn circle around a center common to all. With a field-glass you will be able to see that the other star near Vega, Zeta ([zeta]), is also double, the distance between its components being three quarters of a minute, while the two stars in [epsilon] are a little less than 31/2' apart. The star Beta ([beta]) is remarkably variable in brightness. You may watch these variations, which run through a regular period of about 12 days, 213/4 hours, for yourself. Between Beta and Gamma ([gamma]) lies the beautiful Ring nebula, but it is hopelessly beyond the reach of the optical means we are employing. Let us turn next to the stars in the west. In consulting the accompanying map of Virgo and Booetes (Map No. 11), the observer is supposed to face the southwest, at the hours and dates mentioned above as those to which the circular map corresponds. He will then see the bright star Spica in Virgo not far above the horizon, while Arcturus will be half-way up the sky, and the Northern Crown will be near the zenith. The constellation Virgo is an interesting one in mythological story. Aratus tells us that the Virgin's home was once on earth, where she bore the name of Justice, and in the golden age all men obeyed her. In the silver age her visits to men became less frequent, "no longer finding the spirits of former days"; and, finally, when the brazen age came with the clangor of war: "Justice, loathing that race of men, Winged her flight to heaven; and fixed Her station in that region Where still by night is seen The Virgin goddess near to bright Booetes."