"Beyond that, sir, I cannot go just now, not having the requisite technical knowledge. All that I have suggested may not amount to much," he added with a smile.
"It will do very well for an apprentice," nodded the engineer, with a significant glance at Mr. Keating. "What do you think about it?"
"Very remarkable."
"You say you would convey this waste gas to the gas engines?"
"Yes, sir."
"Do you know where they are?"
"Yes, sir; on this side of the river."
"How would you get it over here?"
"Through pipes, of course. The gas would lose none of its virtue in transit. It is carried much further than that to the mills already. It strikes me that gas from other parts of the yards might be conveyed to the leader pipe in the same way, and thus give you enough gas to run your engines without having to draw further on the city supply."
"How would you carry these pipes across the river—under water?" asked the engineer.