"When we have found _Capricornus_ the sea goat," said Uncle Henry, "it is easy to find _Aquarius_ or the water carrier. Just prolong the line that connects the goat's right foot with his tail until it runs close to a little triangle of three stars with another in the centre. (19) It looks a little like the head of the Serpent we found squirming in _Ophiuchus'_ hands, but it is the water-jar _Aquarius_ is carrying." "Oh, I see it," cried Paul. The other stars in _Aquarius_ were soon found and represented by pebbles. Then Uncle Henry drew the outline that finished the Water-Carrier, like this: [Illustration] "Now we're all through?" inquired Betty. "Until next Christmas," smiled back Uncle Henry. "Can't we have just one more poem?" teased Paul. "What shall it be about?" asked Uncle Henry, with the air of a man who could write a poem to order on any subject. "One about the lovely swan," commanded Betty, "you haven't made one up about the swan." Uncle Henry was in a quandary; he wanted to please everybody with the last poem. He lay down on his back and looked up at the sky for so long that the children thought he must have fallen asleep. Finally Uncle Henry began to recite, "The eagle of Starland Got tired of his tree, And challenged the swan to a race. 'Come up from the water! Fly up and be free! To northward I'll beat you a chase.' The swan thought of shivers And icebergs and frost-- He made up his mind to race South. So they are still flying-- Their race can't be lost-- Till Gabriel blows with his mouth." "What'll Gabriel blow?" inquired Peter when the hand-clapping had stopped. "His trumpet, of course, silly!" answered Betty for Uncle Henry. Just then the children heard a toot from an automobile horn that they all recognized, and the Society of Star-Gazers raced with Uncle Henry back up to "Seven Oaks Cottage." "Sister" and "the Children's Father" had come back from their trip and had surprised everybody. The summer sessions of the Society were over. FIRST WINTER EVENING THE "SOCIETY" LEARNS WHY ORION NEEDS A CLUB TO KEEP FRISKY TAURUS IN ORDER--AND WHY WE SAY "BY JIMINI!" WHEN WE GET EXCITED Uncle Henry came, as he had promised, to spend his Christmas holidays with "Sister," "the Children's Father," Peter, Paul and Betty, in their city apartment. The children's hope for fair weather in Christmas week was not disappointed either. The days were snowy and sunny and the nights frosty and clear. Only one thing had worried the "Society of Star-Gazers"--what was to take the place of the smooth sand of the beach when Uncle Henry should begin to point out the sky people that were visible in the winter sky? There were pebbles, it was true, on the flat roof of the apartment house, but there was no sand.