"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 port_eer_ 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 haven't got much time to do all that figuring." "Well, let the port_eer_ wait. The longer he has to wait the more he appreciates you." "But how about the others?" "It's just as simple. Your chambermaid gets a quarter of a mark for every day you have been in the hotel. But if you stay less than four days she gets a whole mark anyhow. If there are two in the party she gets half a mark a day, but no more than three marks in any one week." "But suppose there are two chambermaids? In Dresden there was one on day duty and one on night duty. I left at six o'clock in the evening, and so they were both on the job." "Don't worry. They'd have been on the job anyhow, no matter when you left. But it's just as easy to figure out the tip for two as for one. All you have to do is to add fifty per cent., and then divide it into two halves, and give one to each girl. Or, better still, give it all to one girl and tell her to give half to her pal. If there are three chambermaids, as you sometimes find in the swell hotels, you add another fifty per cent. and then divide by three. And so on." "I see. But how about the hall porter and the floor waiter?" "Just as easy. The hall porter gets whatever the chambermaid gets, plus twenty-five per cent.--but no more than two marks in any one week. The floor waiter gets thirty pfennigs a day straight, but if you stay only one day he gets half a mark, and if you stay more than a week he gets two marks flat a week after the first week. In some hotels the hall porter don't shine shoes. If he don't he gets just as much as if he