out like a great map. They could not tell their exact location now, but by calculating their speed, which was about thirty miles an hour, Tom figured out that they were above the town of Centreford, near where he had been attacked once by the model thieves.
For several hours the airship kept on her way, maintaining a height of about a mile, for when it was found that Mr. Damon could accommodate himself to thirty-five hundred feet the elevation rudder was again shifted to send the craft upward.
By using glasses the travelers could see crowds on the earth watching their progress in the air, and, though airships, dirigible balloons and aeroplanes are getting fairly common now, the appearance of one as novel and as large as the Red Cloud could always be depended upon to attract attention.
"Well, what do you say to something to eat?" proposed Mr. Sharp, coming into the main cabin, from the motor compartment. "It's twelve o'clock, though we can't hear the factory whistles up here."
"I'm ready, any time you are," called Tom, from the pilot house. "Shall I cook grub, Mr. Sharp?"
"No, you manage the ship, and I'll play cook.
