"About 20 yards altogether in length. Traffic had to go round for a month, but the rest of the work was all-right, and so it really was, and I ought to know. No one found out that nearly the whole of the fallen length had been scamped, for everything was broken and mixed up, and, as luck would have it, a spring burst out there and the flow had to be led away to one entrance, and the falling-in was always put down to that, and that only; still I know the ground was a bit cracked, and underground waters have mighty force, and are best guided and not tried to be stopped, for they will come out somewhere.

"I met my guv'nor next day, and he quietly said to me, 'I have let the tunnel work on your length to an old foreman,' and then he looked clean through me. I know he thought a lot, and I'm afraid I can't play the game of bluff as good as some can, and so work 'extra' profit out of ruins. What do you think of that scare?"

"I don't want to think about it. Glad I had nothing to do with it. Dreadful! No wonder you have a wrinkle or two. What shocking hardships we all have to pass through in getting 'extra' profit, and so undeserved!"

[ ]

CHAPTER IX.

CYLINDER BRIDGE PIERS.

"Deep river bridge foundations are not to be easily worked for 'extra' profit as they are generally too carefully looked after; still, even there, you get a chance occasionally, if you know how to work things. I was always on the scent for 'extras,' and once got a bit out of a cylinder bridge, more by luck than anything else."

"How did you do it?"

"Listen, and then you'll know."

"The bed of the river was soft for a depth of nearly 50 feet, then firm watertight ground, and into that we had to go about 15 feet. Our cylinders were 15 feet in diameter, of cast-iron, and in one piece 6 feet in height I will just name that there is more chance of a bit 'extra' profit when the rings are little in height than if they are in pieces and have vertical joints and are about 9 feet long as usual. A 15 feet ring, 6 feet in length in one piece was not often seen then, but they are now cast much heavier; still, they may be made too large to handle nicely without special tackle, and foundry cleverness should be considered less than ease in fixing on the site."