"I was mystified one morning in an outpatient department by the numerous and vague complaints of an Italian boy—who, incidentally, neglected to mention his chief trouble—and in order to temporize he was told to return with a "24-hour specimen". The next morning he arrived in a Ford car with sundry members of his family and six jugs containing 20 litres of pale, clear ! I need scarcely remark that this was my first experience with ."