Rabelais not only lectured on Galen and Hippocrates, but edited some works of the latter; and Michael Servetus (1511-1553), in a little tract Syruporum universa ratio, defended the practice of Galen as compared with that of the Arabians.
Syruporum universa ratio, &c. (Paris, 1537); four subsequent editions; latest, Venice, 1548 (six lectures on digestion; syrups treated in fifth lecture).
Inquisitionis reprobantur et in universa Christiana republica interdicuntur).
The lastnamed work has the following topics: (1) De universa ecclesia; (2) De Ecclesia romana et pontificis primatu; (3) De universalibus conciliis; (4) De schismaticis et haereticis.
In the bull Sancta Romana et universa ecclesia (December 28, 1318) John definitively excommunicated them and condemned their principal book, the Postil (commentary) on the Apocalypse' (February 8, 1326).