The Ventrimetric System: 'Rational' weights and measures for use in hotels, restaurants, and clubs for the limitation of appetites. One contraption restricts the diner by measuring his expanding waistline, while another, rather embarrassing solution, is to parp a warning once a diner exceeds a certain weight. A humorous comment on the introduction of rationing in Britain during the First World War. The title of the cartoon is a kit on the name of Arthur Yapp. Sir Arthur Yapp (1869-1936) was Deputy President of the YMCA and Director of Food Economy during the First World War.