"Whereabouts are we now?" he inquired.
I pointed to the spot as near as I could judge from yesterday's reckonings.
"What's this here line?" he asked.
"That's the longitude."
He ran his eye to the bottom of the chart and exclaimed—
"Thirty. Is that it?"
"Call it thirty."
"But what do you call it?"
"Thirty, I tell you—thirty degrees west longitude."
"And this here line's the latitude, I suppose?"