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282 omit the first and last stars in the Great Bear or Dipper, the five remaining in the middle form a group flying along together. But it has recently been discovered that several other stars belong to this group, notably Sirius the Dog-star. Now I hope you know where to look for Sirius away in the south. We in Europe never see him very far

away from the south: and, as you know, the Great Bear is in the north. Does it not seem strange that Sirius in the south should belong to the same group of stars as the five Great Bear stars in the north? The group is like a flock of birds flying just over our heads, some of which have passed us while others have not yet come up. There seems to be no doubt about the association of these stars, for their movements have been tested in