Right: 1576, Claudio Galeno "Librorum Tertia Classis Morborum AC Symptomatum differentias omnes & causas & tempora explicat"
Upper left: 1716, Manuel de Porras "En Anatomia Galenico-Moderna"
Lower left: 1416, Hermanos Limbourg "En Las muy ricas horas del duque de Berry"
"these were skills that were acquired at the university... In interpreting the action of the stars and the atmosphere on the body, doctors attempted to restore balance and prevent disease"