Abstract: Du Bartas, in the Fourth Day of La Sepmaine (1578), imitated in many ways the diversity of the cosmological subject of Pontus de Tyard's texts. Their cosmological discourses, on the whole, claim to be “Christian” and remain faithful to traditional Platonic, Aristotelian and Ptolemaic cosmology. These French humanists also discuss the Copernican heliocentric thesis, condemn divinatory astrology and advocate a practical cosmological science.
