The next morning the Iron Boys were out bright and early. Their first work was to see to it that the material was gotten out and put at the proper places so as to be ready when the work of running the line was actually begun. The material, of course, was picked out by the engineers, as this required technical knowledge that Steve and Bob could not be expected to possess.

At the same time a gang of men had started in on the abutment out in the middle of the river. All day long Steve, on one side of the river, and Bob on the other calmly directed the work of the men. Mr. Phillips made a trip over the ground on both sides of the river. He was well satisfied with his inspection. He was convinced that he had made no mistake in choosing his two young foremen.

Chainmen had run the distances and staked them off, so that by noon the route to be followed by the pipe line was all laid out and ready for the detailed placing of the material. Places where the piping had to be raised or lowered were also marked out. Late in the afternoon Steve and Jarvis went over their respective contracts with blue prints in hand, fixing every detail of the work in their minds.

"I think we are ready to do business to-morrow," said Steve as the chief engineer came up. "Will you order the full gang to report early in the morning?"

"Yes; that's what I wanted to know—if you would be ready for them."

"We are ready for the great battle," smiled Rush.

On the following morning nearly a hundred men, all told, were working on the two sides of the contract, including the experts who were changing over the furnaces to make possible the installation of the new system.

It was early in the forenoon when Bob Jarvis, on his side of the river, made an interesting discovery. There were two men working for him who attracted his attention at once when he got a chance to look his workmen over and measure his force.

"Foley and Kalinski," muttered the boy. "A fine pair! It does seem impossible to get away from these fellows. They bob up in the most unexpected places and at the most unexpected times." Jarvis grinned broadly. "But this is the time the tables are turned. I'd like to see them cut up any of their fancy tricks on this job. There'll be music—loud music—if they try!"

The two men were working side by side. Bob strode over to them.