to a level keel, the craft was sent here and there, darting about like a bird, and going about in huge circles.
"Start the gas machine, and we'll come to rest in the air," said the balloonist, and Tom did so. As the powerful vapor filled the container the ship acquired a bouyancy, and there was no need of going at high speed in order to sustain it. The propellers were stopped, and the Red Cloud floated two thousand feet in the air, only a little distance below some fleecy, white masses from which she took her name. The demonstration was a great success. The gas was again allowed to escape, the propellers set in motion, and purely as an aeroplane, the ship was again sent forward. By means of the planes and rudders a perfect landing was made in the meadow, a short distance from where the start had been made. The crowd cheered the plucky youth and Mr. Sharp.
"Now I'm ready to go on a long trip any time you are, Tom," said the aeronaut that night.
"We'll fit up the car and get ready," agreed the youth. "How about you, dad?"
"Me? Oh, well—er—that is, you see; well, I'll think about it," and Mr. Swift went to his own room, carrying with him a package of papers, containing intricate calculations.
