Dennis, mystified, returned running with his.

Stover, securing it with strings, fastened it firmly on the table, which he moved near the scene of operations. He then lowered the upper half of the window, a.s.suring himself that a slight impetus would start it. To the sash he attached a stout string which he ran through a pulley fixed to the top of the window frame; to the string he fastened a weight which he carefully balanced on the edge of a chair; to the weight, thus fastened, he attached another string which he led to the clock and made fast to the stem that wound the alarm. Then he straightened up, cast a glance over the Shad's handiwork and went to the register.

"When the window shuts it should open the register, of course--first principles," he said crushingly. He disconnected the string from the bed and arranged it on the window. Having wound the clock he addressed his audience:

"It's a simple little thing," he said with a wave of his hand. "I happened to remember that the key of an alarm clock turns as the alarm works. That's all there is to it. Set the alarm when you want to wake up--see--like this. Alarm goes off, winds up spring, throws weight off balance, weight falls, shuts the window, opens the register and you stay under the covers. Practical demonstration now proceeding."

The mechanism worked exactly as he had predicted. The Tennessee Shad and the Wild Irishman, transfixed with awe, watched with dropped mouths the operation. Finnegan, the first to recover, salaamed in true Oriental fashion.

"Mr. Edison," he said in a whisper, "don't take advantage of two innocent babes in the wood. Did you honestly just work this out?"

"Oh, no, of course not," said d.i.n.k loftily. "My father told me,--it cost him a fortune; he gave years of his life to perfecting it!"

"And this to me!" said the exponent of the superlative reproachfully.

The Tennessee Shad rose and offered his hand with a gesture worthy of Washington.

"Sir to you. I am your humble servant. Wonderful! Marvelous! Smashing!

Terrific! Sublime!"

"Do it again," said Dennis de Brian de Boru.

The alarm being wound and set, the operation was repeated with the same success, while Dennis danced about excitedly and the Tennessee Shad contemplated it with dreamy absorption.

"Jemima!" said Dennis. "And it works for any time?"

"Any time," said d.i.n.k, with one hand gracefully resting on his hip.

"Cracky!" exclaimed Dennis, prancing excitedly toward the door. "I'll get the whole House up."

"Dennis!"

Finnegan stopped, surprised at the note of authority in the Tennessee Shad's voice.

"Dennis de Brian de Boru Finnegan; back and sit down."

"What's wrong?"

"You would call in the whole House, would you?"

"Why not?" said d.i.n.k, thirsting for the applause of the mult.i.tude.

"d.i.n.k, oh, d.i.n.k!" said the Shad, in profound sorrow. "You would throw away a secret worth millions, would you?"

d.i.n.k looked at Dennis, who returned the look, and then with a simultaneous motion they sat down.

"This invention has millions in it, millions," said the Tennessee Shad, promoter. "It is simple, but revolutionary. Every room in the school must be equipped with it."

"Then there's all the apartment houses," said Dennis eagerly.

"That will come later," said the Tennessee Shad.

"We'll patent it," said Stover, seeing clouds of gold.

"Certainly," said the promoter. "We will patent the principle."

"Let's form a company."

The three rose and solemnly joined hands.

"What shall we call it?"

"The Third Triumvirate?" said Dennis.

"Good!" said the Tennessee Shad.

"What shall we charge?" said d.i.n.k.

"We must make a dollar profit on each," said the Tennessee Shad. "That means--four hundred fellows in the school--allowing for roommates; we should clear two hundred and ten dollars at the lowest. That means seventy dollars apiece profit."

"Let's begin," said Dennis.

"I'm unalterably opposed," said d.i.n.k, "to allowing Doc Macnooder in the firm."

"Me, too," said Dennis.

"Doc is strong on detail," said the Tennessee Shad doubtfully.

"I'm unalterably opposed," said d.i.n.k, "to allowing Doc Macnooder to swallow this firm."

"Me, too," said Dennis.

"Doc has great business experience," said the Tennessee Shad; "wonderful, practical mind."

"I'm unalterably----" said d.i.n.k and stopped, as the rest was superfluous.

"Me, too," said Dennis.

"Some one's got to work for us in the other Houses."

"Make him our foreign representative," said Stover.

"And give him a commission?"

"Sure--ten per cent."

"No more," said Dennis. "Even that cuts down our profits."