he went over the details of his trips through the air, of the dangers under the seas, of those he had escaped from on Earthquake Island. Surely he was entitled to a little rest at home.
And yet there was a lure to it all. A certain fascination that was hard to resist. Mr. Period must have seen what was going on in Tom's mind, for he said:
"I know you're going. I can see it. Why, it will be just the very thing you need. You'll get more fame out of this thing than from any of your other inventions. Come, say you'll do it.
"I'll tell you what I'll do!" he went on eagerly. "After you make the camera, and take a lot of films, showing strange and wonderful scenes, I'll put at the end of each film, next to my picture, your name, and a statement showing that you took the originals. How's that? Talk about being advertised! Why you can't beat it! Millions of people will read your name at the picture shows every night."
"I am not looking for advertisements," said Tom, with a laugh.
"Well, then, think of the benefit you will be to science," went on Mr. Period quickly. "Think of the few people who have seen wild animals as they are, of those who have ever seen an earthquake, or a volcano in action. You can go to
