"No, sir. I've watched you two closely. It's simple. You get 7. Pull 7. Muscle does it."
"That so?" continued old Jack, in a slow, pitying drawl. "Well, well! Now, just to demonstrate, suppose you take a test?"
"I'm your man!" cried Slavin, pulling off his coat and striking an attitude.
"Double switch," called out Knight--"18 and 19."
Slavin wavered, Knight had called out two levers way down the line, rarely used. Slavin's eyes ran the long array. Then he got his bearings, and swung his arms down into the battery with a ponderous swoop.
His great strong fists clasped the lever handles in a really admirable manner, and he looked the prodigy of muscle he claimed to be.
"Open 'em up!" shouted Knight
Slavin bent to his task.
"Pull--you lubber, pull!" yelled old Jack Knight.