It is known that Canes Venatici now occupy the place of an upraised arm of Bootes, and I imagine that Corona Borealis, though undoubtedly a very ancient constellation, occupies the place of his other arm.

Giving to the constellation the extent thus implied, it exhibits (better than most constellations) the character assigned to it.

One can readily picture to oneself the figure of a Herdsman with upraised arms driving Ursa Major before him.

This view is confirmed, I think, by the fact that the Arabs called this constellation the Vociferator.
Bootes contains many beautiful objects.

Partly on this account, and partly because this is a constellation with which the observer should be specially familiar, a map of it is given in Plate 4.
Arcturus has a distant pale lilac companion, and is in other respects a remarkable and interesting object.