AQUILA (ak'-wi-lä)-THE EAGLE, AND ANTINOUS. (Face Southeast.)

LOCATION. Half way up the sky in the Milky Way, you will see three stars in a line, the middle one much brighter than the other two. This bright star is Altair in Aquila. It forms with Vega and Deneb an isosceles triangle. Altair is at the apex, about 35 degrees from the other two. A triangle is formed by Vega, Altair, and Ras Alhague, in the Serpent Bearer, which is about 30 degrees west of Altair.

This is a double constellation composed of Aquila and Antinoüs. Altair is in the neck of the eagle, Alschain in the head of Antinoüs.

When the moon is absent, a rude arrow head can be traced out, embracing almost all the stars in Aquila. For forty hours (7) remains bright, diminishes for sixty-six hours to minimum brightness, and is stationary in brilliancy for thirty hours. Aquila dates back 1200 B.C.

DELPHINUS (del-fi'-nus)-THE DOLPHIN, OR JOB'S COFFIN. (Face Southeast.)

LOCATION. The little cluster of five stars forming Delphinus is to be seen about 10 degrees northeast of Altair, and, though there are no bright stars in the roup, it can hardly escape notice. A line drawn from Vega to Albireo, and prolonged about 20 degrees, strikes the star () in the tail of the Dolphin. The four other stars of prominence in the constellation are a little above (), and form a diamond-shaped figure.

The little asterisms Sagitta, the Arrow, and Vulpecula and Anser, the Fox and Goose, are shown just above Delphinus. Delphinus is also called Job's Coffin. The origin of this appellation is unknown.

In Greece, Delphinus was the Sacred Fish, the sky emblem of philanthropy. The Arabs called it the "Riding Camel."

SAGITTARIUS (saj-i-tā'-ri-us)—THE ARCHER. (Face

South.)

LOCATION.-A line drawn from Deneb, in Cygnus, to Altair, in Aquila, and prolonged an equal distance, terminates in Sagittarius, about 10 degrees east of its distinguishing characteristic, the Milk Dipper. Sagittarius is one of the signs of the Zodiac, and lies between Capricornus, on the east, and Scorpio, on the west.

The star groupings in this constellation are very characteristic.

The bow of the Archer is easily traced out.

The star (y) is the tip of the arrow.

Note the star (u), which serves to point out the Winter Solstice.

On a clear night, the pretty cluster known as Corona Australis, the Southern Crown, can be seen about 10 degrees below the bowl of the Milk Dipper. Its lucida, the fourth-magnitude star Alfecca Meridiana, culminates Aug. 13th.

Sagittarius is about due south, in a splendid position for observation, during the month of July, between the hours of nine-thirty and eleven o'clock P.M.

Note the fine clusters 24 M. and 8 M., also an almost circular black void near the stars (y) and (8), and to the east of this spot another of narrow crescent form.