[On the scientific approach of Girolamo Fabrici d'Acquapendente].

The scientific accomplishments of Girolamo Fabrici d'Acquapendente are critically considered. Special attention is devoted to his position in relationship with the views of contemporary Paduan scientists such as Galileo, Santorio, Sarpi. Fabrici appears to represent the highest point of the XVI century morphological research, being in the same time innovative for his new observations and conservative for his substantially Aristotelian way of thinking.