Roger's thin face flushed as it was apt to do when his work was under discussion. "This is mighty kind of you, Dr. Austin, but my work has gone beyond the experimental stage. I'm ready to erect Solar Power Plants if I can find the money."
"Rog, you're not ready!" cried Ernest, with unusual vehemence. "You've no idea of the troubles you'll be up against when you try actually to erect a working plant, in a hot country."
"I'm not afraid," returned Roger shortly. "One thing is certain, I'm not going on experimenting any longer."
"My understanding of your device is, that it is practical only in tropical or semi-tropical climates," said Austin.
"This first device is, yes," answered Roger shortly. "If I can ever get this one launched, I shall take up other climates."
Austin eyed Roger keenly for a moment, then he said suddenly,
"Why don't you let me see your plans? We might possibly have something to say that would interest you."
"Oh, of course! I wish I had some of them here. And it's too late to go up to the laboratory to-night."
"Wait a moment, Roger! Wait a moment," exclaimed Ernest. "Praying that we'd get to this point to-night, I brought down a set of drawings." He unlocked a drawer of the table and pulled out a roll of paper.
Roger spread some of the sheets on the table and the black, the yellow and the sandy heads bent over them.