grafters lined up with their claws out. First came the porteer. Then came—"
"How much did you give the porteer?"
"Five marks."
"You gave him too much. You ought to have given him about three marks, or, say, two marks fifty. How much was your hotel bill?"
"Including everything?"
"No, just your bill for your room."
"I paid six marks a day."
"Well, that made forty-two marks for the week. Now the way to figure out how much the porteer ought to get is easy: a fellow I met in Baden-Baden showed me how to do it. First, you multiply your hotel bill by two, then you divide by twenty-seven, and then you knock off half a mark. Twice forty-two is eighty-four! Twenty-seven into eighty-four goes about three times, and a half from three leaves two and a half. See how easy it is?"
"It looks easy, anyhow. But you
