The earliest work devoted exclusively to physiology and the first to call the subject by that name. It was re-issued in 1554 as part of Fernel’s Medicina (No. 2271). Femel suggested that physicians should  study the human body themselves, and not accept tradition.

See Sir Charles Sherrington’s The endeavour of Jean Femel, Cambridge, 1946.  See also the English translation of the 1567 edition: The physiologia of Jean Fernel (1567). Translated and annotated by John M. Forrester. Philadelphia: American Philosophical Society, 2003.

The first systematic treatise on pathology, which also introduced the names for the sciences of pathology and physiology. In the second part, entitled “Pathologia”, Fernel provided the first systematic essay on the subject, methodically discussing the diseases of each organ. Fernel was the first to describe appendicitis, endocarditis, etc. He believed aneurysms to be produced by syphilis, and differentiated true from false aneurysms. He was physician to Henri II of France. The first section of the above work is the second edition of Fernel’s classic treatise on physiology (No. 572).

French translation, Paris, 1879.