“So I drive the pin here. When does it reach Wadsworth?”
“At 2.20 P. M.”
“So the pin goes here. It stays there five minutes, doesn’t it?”
“Yes—just like Number Four.”
“So another pin goes here. When does it reach Cincinnati?”
“At 5.35 P. M.”
“And here’s the fourth pin—and there’s your red string across the board, indicating Number Three. Now look at them.”
Here is what Allan saw:
Time-Table