De prodigiosa specie, naturaq[ue] cometae, qui nobis effulsit altior lunae sedibus, insolita prorsus figura, ac magnitudine, anno 1577 plus septimanis 10. apodeixis tum physica tum mathematica : adiuncta his explicatio duorum chasmaton anni 1575 nec non ex cometarum plurium phaenomenis epilogistica quaedam assertio de communi illorum natura, generationum causis atque decretis supra quam hactenus à Peripateticis annotatum est
A 1577 Latin treatise on comets by Cornelis Gemma-Frisius, printed by Christophe Plantin's workshop in Antwerp, written for scholars and natural philosophers of its day. Its pictures are woodcut diagrams: a celestial chart of constellations and a comet scene with a small printer's emblem, showing how sky maps and star figures were drawn in the sixteenth century, useful for designers after dense engraved star charts and decorative book marks.
![Picture 1 of 3 from De prodigiosa specie, naturaq[ue] cometae, qui nobis effulsit altior lunae sedibus, insolita prorsus figura, ac magnitudine, anno 1577 plus septimanis 10. apodeixis tum physica tum mathematica : adiuncta his explicatio duorum chasmaton anni 1575 nec non ex cometarum plurium phaenomenis epilogistica quaedam assertio de communi illorum natura, generationum causis atque decretis supra quam hactenus à Peripateticis annotatum est (1577), leaf 5](https://img.insideoutlibrary.com/img/200/erara-126427-5-1.webp)
![Picture 2 of 3 from De prodigiosa specie, naturaq[ue] cometae, qui nobis effulsit altior lunae sedibus, insolita prorsus figura, ac magnitudine, anno 1577 plus septimanis 10. apodeixis tum physica tum mathematica : adiuncta his explicatio duorum chasmaton anni 1575 nec non ex cometarum plurium phaenomenis epilogistica quaedam assertio de communi illorum natura, generationum causis atque decretis supra quam hactenus à Peripateticis annotatum est (1577), leaf 24](https://img.insideoutlibrary.com/img/200/erara-126427-24-1.webp)
![Picture 3 of 3 from De prodigiosa specie, naturaq[ue] cometae, qui nobis effulsit altior lunae sedibus, insolita prorsus figura, ac magnitudine, anno 1577 plus septimanis 10. apodeixis tum physica tum mathematica : adiuncta his explicatio duorum chasmaton anni 1575 nec non ex cometarum plurium phaenomenis epilogistica quaedam assertio de communi illorum natura, generationum causis atque decretis supra quam hactenus à Peripateticis annotatum est (1577), leaf 74](https://img.insideoutlibrary.com/img/200/erara-126427-74-1.webp)