"Along the course, in as nearly as possible a bee-line from New York to San Francisco, there will be captive balloons, painted white for day observation, and arranged with certain colored lanterns, for night-sighting. Then, too, there will be pylons, or tall towers of wood, erected where there are no balloons. So I think we can pick our course, Dick."

"Oh, I didn't know about the balloon marks," said the young millionaire. "Well, I'll leave the piloting to you. I think you know how to do it."

Several more trial flights were made. Each time the Abaris seemed to do better. She was more steady, and in severe tests she stood up well. The gyroscope stabilizer worked to perfection under the most disadvantageous conditions.

Several little changes were made to insure more comfort for the passengers on the trip. Dick's undertaking had attracted considerable attention, as had the plans of several other, and better-known aviators, to win the big prize. The papers of the country were filled with stories of the coming event, but Larry Dexter had perhaps the best accounts, as he was personally interested in Dick's success.

Dick paid another visit to Uncle Ezra, and this time his crabbed relative was more genial. He allowed his nephew to have a view of the craft Larson was building. The former lieutenant greeted Dick coldly, but our hero thought little of that. He was more interested in the machine.

Dick found that his uncle really did have a large, and apparently very serviceable biplane. Of course it was not like Dick's, as it designed to carry but three passengers.

"We're going to make the trip in about forty-eight hours, so we won't need much space," said Uncle Ezra. "We can eat a snack as we go along. And we can sleep in our seats. I've got to cut down the expense somehow. It's costing me a terrible pile of money!"

Uncle Ezra's airship worked fairly well in the preliminary trials, and though it did not develop much speed, Dick thought perhaps the crafty lieutenant was holding back on this so as to deceive his competitors.

"But, barring accidents, we ought to win," said the young millionaire to his chums. "And accidents no one can count against."

Everything was in readiness. The Abaris had been given her last trial flight. All the supplies and stores were aboard. Jack Butt had taken his departure, for he was not to make the trip. His place would be taken by the army lieutenant. A special kennel had been constructed for Grit, who seemed to take kindly to the big airship.