"I wonder if ours will be like them," said Donald, turning over the pages of his notebook. "Even if they should be different." said Uncle Robert, "they may be just as true." "We'll get up early and start the shadow stick the first thing in the morning," said Frank, "so as to have it ready by noon." "How do you know when it is noon?" asked Uncle Robert. "We look at the clock," said Susie. "But noon by the clock is not always noon by the sun," replied Uncle Robert. "How can that be?" asked Donald. "It is noon somewhere on the globe every minute of the twenty-four hours," said Uncle Robert. "The sun is always setting and always rising somewhere." The children were puzzled. "I don't see how that is," said Donald. "Let us see if we can find out," said Uncle Robert. "Frank, you stand at the east end of the room, Donald at the west, and Susie in the middle. Now, we'll play that Frank is in New York, Susie here at home in Illinois, and Donald in Denver. I'll take the lamp and be the sun. You are shadow sticks, you know. Now watch the shadows, and see when they point directly north." Uncle Robert took the lamp and walked slowly from the east side of the room. "My shadow points north," said Frank as Uncle Robert passed him. "Now mine does," said Susie. "And mine last of all," said Donald. Uncle Robert took out his watch. It was ten minutes past eight. "That is Susie's time," he said. "Would it be the same in New York, Frank?" "I think it would be past that," said Frank, "but I don't know how much." "It is ten minutes past nine by the watch in New York," said Uncle Robert. "When would it be that time in Denver?" asked Donald. "In an hour by the watch," said Uncle Robert, "but it would not be the same by the sun." "Then the watches don't tell the true time, do they?" said Frank. "The sun's shadows give us the true time," said Uncle Robert. "We will study the shadows, and by and by may learn how the watches and clocks are regulated. But how do you think people told the time before they had clocks?" "It must have been by the sun," replied Frank. "I can tell by the sun when it is noon," said Donald, "but I don't see how any one can tell any other hour that way." "How do you know when it is noon?" "Why, the sun is highest at noon." said Donald. "and the shadows point straight toward the north." "Early in the morning they point to the west," said Frank, "and in the evening they point to the east." "The people who lived in the world many hundred years ago observed the same thing," said Uncle Robert. "There was nothing so strange to them as the rising and setting of the sun. They loved the light that came with it. They feared the darkness that followed its going away. They told many interesting stories to explain this continued appearance and disappearance. Some thought the sun was a king riding through the sky in a golden chariot. Others looked upon it as a god and worshiped it.