"This," began Roger, "is the general ground plan of a plant designed to produce about 50 horse power. This detail here, which looks like a design for a gla.s.sed-in hot bed for early cabbage, is the heat absorber.
It consists of a trough lined with some insulating material, covered with two layers of ordinary window gla.s.s. Under this window gla.s.s I flow crude oil, which absorbs the sun"s heat as it comes through the gla.s.s. I get some remarkable temperatures, right here in Eagle"s Wing. Here is a month"s thermometer readings during July."
Austin studied the table thoughtfully. "The heated oil is the fuel for a low pressure engine. What engine do you use?"
"One of my own design. Here are the drawings."
Austin bent over these with absorbed interest and for an hour Roger answered his questions. At the end of this time, Austin lighted his pipe, which had gone out, and took a turn or two up and down the room.
Then he paused suddenly in front of Roger and said, "Why don"t you go down into Arizona and put up a small pumping plant as an experiment for the Smithsonian? I know this is not the large way, the commercial way, but I am convinced that this is the careful, practical way. Your friend Wolf tells me that the most popular reason given by the business houses you"ve visited for turning you down has been that you"ve never actually erected a working plant. Why not try it for us? Then you"ll be in a position to talk business."
Roger, his face a still deeper red, looked from Austin to Ernest and back again. He relighted his pipe with fingers that shook.
"How big a plant?" he asked huskily.
"Big enough to irrigate about twenty-five acres of desert for alfalfa.
I"m convinced that when you actually undertake to put such a plant in operation, you"ll realize that there are details to be remade that you never dreamed of, on paper."
Roger did not speak for a moment. Five years ago he would have refused such an offer as this, without hesitation. It was very different, this, from turning out say a thousand units in six months. Yet, so long had hope been deferred that Roger hesitated, not for lack of enthusiasm for Austin"s offer, but because the sudden joy that rose within him made it difficult to speak. Finally he turned to Ernest, who was watching him with a look of inexpressible satisfaction in his beautiful eyes.
"Will you go with me, Ern?"
"The family will kick, but I"m going," answered Ernest.
"What are the terms, Dr. Austin?" asked Roger.
"We"ll buy all machinery and apparatus and pay for labor and living up to ten thousand dollars."
Roger could not believe that his sterile years of endeavor and disappointment were to bring forth even this small fruit. He laid his pipe down, picked it up, then said, "I can"t tell you what this opportunity means to me. It"s--it"s my work, you see, and--and--"
"That"s all right," Austin spoke hastily. "When can you start? I know exactly the spot in Arizona that we would wish you to go to--Archer"s Springs. Have you a map of Arizona?"
"Yes, some of the Geological Survey maps," said Ernest, opening up a chart case.
"Here"s the spot." Austin put his pencil on the map. "It"s about twenty miles north of the railroad, a mining country, but we"ve always believed that the valleys here could blossom if we could get water to them. The Reclamation Service never expects to get in there."
"I know that," said Roger eagerly, "and yet a cheap power would make an inland empire of that section."
"Have you ever seen it?" asked Austin.
"No, Chicago has been my uttermost limit of travel so far. But I"ve studied hot countries and their resources for ten years."
"My idea is," said Austin, "that we buy all our supplies at St. Louis.
I"ll go that far with you. You can buy the essentials for making camp at Archer"s Springs and by the time you are ready for it, freight will have brought the rest. I believe there is an excellent trading store at Archer"s Springs where you can buy a camp outfit. I"ll wire down and find out."
"Jove, Rog, doesn"t that sound great!" exclaimed Ernest.
"When shall we plan to start?" asked Roger.
"Why not at once, so as to get the plant running by Spring, when the real heat comes on?" Austin looked from one eager face to the other.
"We both are teaching, you know," said Ernest. "I thought next June--"
"Next June!" shouted Roger. "This is the first of December, Dr. Austin.
We"ll have found subst.i.tutes and be ready to travel immediately after the Christmas recess."
Ernest winced. "That"s crowding things! But--well, you"re the boss of the expedition, Rog. I"ll be with you."
"Fine!" Austin rubbed his hands together. "We"ll start our purchase list now, eh?"
The concert, which had proceeded during the evening without interruption, now stopped abruptly, just as the clock struck ten.
"How about deferring that until to-morrow?" asked Roger. "I"ve a number of lists in my desk at the Science Building that will help us."
"That"s a good idea," Austin rose as he spoke. "Will you both take dinner with me at the hotel to-morrow evening and we can give the evening to this?"
"We"ll be there," replied Roger, following Austin to the door. When he returned, Ernest was locking up the drawings. "Well, Ern, old boy, it"s not big business, but thanks to you, it"s a real start in that direction, anyhow. How can I thank you?"
"By helping me to break the news to the family. It"s most deucedly short notice. We"ll have some trouble in finding subst.i.tutes for our cla.s.sroom work."
"I"m sure Benson and Ames will be only too glad of the chance," Roger spoke decidedly. "I thought of them this afternoon. I swear I was in earnest in saying I was through with teaching. And now this! It"s like a double answer to prayer."
"Boys!" called Elsa, "the beer is waiting."
Ernest was well into his second stein and his third cheese sandwich before, in response to repeated kicks from Roger, he made his announcement. There was a moment"s silence, broken by Elsa.
"Lucky dogs! Take me along!"
"But, Ernest, you cannot go," protested Papa Wolf. "Let Roger go if he wishes. I have nothing to say to that. But, my son, with the chance for a full professorship in a great university--no!"
Roger sighed. He was sorry for Ernest, but he never could understand his docile relationship to his father. Ernest came back, pluckily enough.
"I think I ought to go, Papa. It will be a fine experience and I will come back to teaching with a new interest."
"But why waste time? Why waste time?" cried his father. "You are nearly thirty. Instead of playing in the desert for a year, you should be marrying and starting a home."
"It won"t be play, Mr. Wolf," said Roger. "It"ll be bitter hard work, but it will add considerably to Ernest"s reputation."
"Pah! Pah! _Was ist"s!_" snorted the older man. "You are a good boy, Roger, but you are full of foolishness. You are bad for Ernest."
"Pshaw, Papa, don"t talk like a goose," protested Elsa, her cheeks crimson. "All the initiative Ernest"s got, Roger gave him. Why not let Ernest see a little of life before he settles down forever? Let him have just one adventure, for goodness sake."
"Will you be still, Elsa?" asked her father sternly.
"Hush, Elschen," whispered Mamma Wolf.
"Roger should be settling down and finding a wife for himself," Papa Wolf went on. "He"d soon get over his absentminded ways."
Ernest suddenly laughed. "Why, Papa, Roger looks on women about the way you look on inventors."