“Esher would turn you down cold. It’s his business to stand by his own laboratory, of course, and he’ll do it. I didn’t ask you to get this college analysis with any hope of convincing Esher with it; I merely wanted you to be satisfied in your own mind. You see what we’re up against. If we have to throw away that shipment of Portland, it will mean a good chunk of loss for the Grillage Engineering Company. You said you owed the big boss something; now’s the time to prove that you weren’t talking through your hat.” Thus appealed to, David stifled his qualms; and the next day he carried out his instructions faithfully and to the letter. The condemned material was overhauled at Little River and was shunted into the Engineering Company’s own construction yard at the dam. Here it was shifted to other cars by Bullock’s laborers, and the juggling process was brought into play. To the F. S. & A. agent at Little River, David merely stated a fact. He was shipping three car-loads of cement from the company’s yard at the dam to the bridge at Coulee du Sac. Would the agent way-bill them accordingly? “Ship cement in one day and out the next, do you?” grinned the railroad man. “Didn’t I see the yard crew shoving these three cars over to the dam yesterday?” “These are not the same cars,” said David, and he produced the yard boss’s memorandum to prove it. The half-truth, which was wholly an untruth so far as the inner fact was concerned, succeeded. The cars were billed, and in due course they reached Coulee du Sac as a new shipment. Just what was to be gained by the juggling, when the railroad inspectors would be certain to sample the cement and test it, with probably the same results as those they had reached before, was not very clear to David Vallory. But one night, a little farther along, he was given a shock of enlightenment. The shock was administered by his bunk-shack mate, the engineer in charge of the under-water work in the caissons; Shubrick by name, and by training a man who had grown accustomed to many shifts and tricks in that branch of engineering which is fullest of fatalities. To Shubrick David Vallory was freeing his mind on the general subject of over-critical inspection. “These railroad watchers are getting on my nerves more and more, all the time!” he complained. “They act as if they think we are a bunch of crooks, needing only half a chance to scamp this job so that it will fall into the river with the first train that passes over it. Do they worry you on the under-water work as much as they do us on the concreting?” Shubrick grinned ferociously. “I’d shut off the air and drown a few of them if they did. Just the same, David, they’re onto their job all right. You needn’t make any mistake about that.” “You say that as if you thought we needed watching. Do you think so?” This time Shubrick’s grin took a sardonic twist.