"I really believe you would be safer if you were a bird, John," asserted Mrs. Ross, with an uneasy smile. "Birds have no motors to fail them, no fire to ignite and burn them up, as our present airplanes. How many of your own unfortunate associates can lay their untimely deaths to either one of these causes! It was only the last time you were here that you were telling Paul and me about the terrible fall Howard Smith had because his motor stopped, and how his machine ignited, and how he was burned past recognition." "I know," said the veteran airman; "those things will happen at times, mother, even with the most careful fellows. The time will come, I think, and very soon, when stalled motors can be restarted in the air, and when accidentally ignited fuel will burn itself out with no harm to either the machine or its occupants. The fact is, Paul and I have some ideas now as to how to overcome those very troubles, along with other improvements, and the first chance we get we are going to build an airplane along these lines and put it to the test, aren't we, Buddy?" "We surely are," was Paul's enthusiastic response. "One of these fine days, mother, when we get our patents and sell them, you shall live in as fine a home as the Giddings's over on Shadynook Hill, and when you wish to go into the city to do any shopping, John or I will take you in a beautiful sedan airplane which will be safer than an automobile, and which will be guaranteed not to raise a dust or wear out tires." Mrs. Ross laughed heartily at the glowing picture her second son had drawn, more because he spoke with such seriousness, and because John too wore a matter-of-fact look during the prophecy. "Oh, I have some great dreamers here in this little family," she said, as she arose to resume her household duties. "We will hope that some of your dreams come true." Her sons laughed good-naturedly; then Paul turned to his brother. "Come on down in the basement, John," he said; "I wish to show you our latest miniature model, the Sky-Bird. Another day's work ought to finish it." John followed him downstairs. In one corner of the large basement was a good-sized workbench, lighted by two windows, and equipped with several neatly-arranged shelves, which now held a divers collection of chisels, bits, countersinks, etc. In a splendid oak cabinet attached to the wall above was a more extensive array of wood- and metal-working tools, some of which the brothers had bought with money earned at odd jobs when they were still small boys. Since, they had added to their set from time to time, as they needed this tool or that, until now few professional mechanics could boast of a finer assortment.