Boulders sometimes jump up, all of a sudden, as if they had sat on a pin. They do this when an earthquake wave passes straight through the globe; from Ecuador, say, to Borneo. Such waves, called "waves of transmission," travel "incog" as it were, not causing any disturbance until they reach the surface again. Then if there happens to be a big rock on the spot, up it jumps--the funniest thing you ever saw! Harry Furniss, the famous English cartoonist, made this picture just for a joke. ] On page 157 you will find two pictures of stones by two famous landscape artists, Claude and Turner. Of the stones in one picture Mr. Ruskin says, "they are massy and ponderous as stones should be"; while the stones in the other picture are "wholly without weight." In which of the pictures would you say the stones are "massy and ponderous," and in which are they "wholly without weight?" Now look at the "Hide and Seek" notes below and see if you and Mr. Ruskin think alike. HIDE AND SEEK IN THE LIBRARY A boy scout, as you know, is expected, among other things, to be an Indian (a good Indian, of course); to keep his eyes wide open as he goes about in the woods and fields. In that way he is always coming across things to wonder over, such as the big stone the Indians found. It's just such boys that great men are made of. All the great scientists began in that way. Take the case of Hugh Miller, for example. In the encyclopedias you will meet him as a famous geologist, along with great artists and inventors and statesmen and other fine company; but at first he was only a boy, like the rest of us. And he had very little chance to go to school, but he went anyhow; went to school, like Lincoln, to all the good books he could get hold of and also to the stones of the field. After a while he got so he could write books himself, and they are among the most readable books you ever saw. You just read his story of "The Old Red Sandstone," and if you don't open your eyes! The encyclopedia will tell you a great deal about the boy himself and about "Uncle Sandy" and "Uncle James," and how they helped him. But the start of it was this: One day a mason in Scotland[28] broke off a piece of stone--he was building a wall at the time--and inside of the stone he found--what do you think? A fish! Inside of the stone, mind you! [Footnote 28: Hugh was a Scotch boy.] Of course you won't be surprised to hear that it was a queer, outlandish sort of fish, and that it was dead. In fact, it had been dead so long that it also had turned to stone. In short, it was a fossil. But no Pharaoh in his huge pyramid ever became more famous than did that little fish in his tomb of stone. Yet, would you believe it?--neither the mason nor his fellow workmen thought much about it. They frequently came upon these fossils and, beyond being idly curious at first, paid little attention to them.