[The patient exhibited; clinical demonstration and clinical lessons in the Nederlandsch Tijdschrift voor Geneeskunde].

The evolution of clinical demonstrations and of the illustrations is discussed, with reference to the importance of sharpening observation as a medical method. It is especially in the section 'Clinical Lessons' in the Nederlandsch Tijdschrift voor Geneeskunde that the way in which the patient is shown in illustrations is considered in detail, including the question to what extent limits were imposed on what was considered permissible in illustrations.