Del Papa - Trattati - 1734

WHEN COMETS CEASE TO BE MONSTERS: SCIENCE, THE COSMOS AND SUPERSTITION
Published in Florence in 1734, this collection of Varj Treatises by Giuseppe Del Papa represents an extraordinary example of the transition between Aristotelian cosmology, experimental rationalism, and the new Enlightenment scientific culture. A grand ducal physician, natural philosopher, and academic, Del Papa tackles topics ranging from astronomy to physics, from medicine to meteorology, aiming to free scientific observation from the remnants of astrological superstition. In the heart of Tuscan Eighteenth-Century life — an environment still marked by Galileo’s legacy — the volume stands as a work of high and cultured popularization, capable of melding classical tradition with modern critical spirit. Particularly significant is the treatment of comets, interpreted no longer as signs of misfortune or divine manifestations, but as natural phenomena governed by physical laws intelligible to reason. The book thus testifies to that crucial moment when the sky slowly ceases to be a theater of omens and becomes a system governed by mathematical principles and observable phenomena.
MARKET VALUE
Tuscan scientific works of the early 18th century, especially in original edition and contemporary bindings, are appreciated by collectors of the history of science and natural philosophy. Complete copies of this collection by Del Papa typically fetch between 800 and 2,000 euros on the antiquarian market, with particular interest in well-preserved, complete copies of the engraved plate.

PHYSICAL DESCRIPTION AND CONDITION
A very fine copy with pristine, unlooked pages. Contemporary full parchment limp binding with handwritten title on the spine; small woodworm holes on the boards. Title page printed in red and black with a woodcut scientific vignette depicting an armillary sphere. One copper-engraved plate out of text. Dropped initials, initial capitals, and tailpieces woodcut. Astronomical diagrams and cosmological schemes in the text, relating to the structure of the terrestrial sphere, the horizon, and the formation of the iris. Also present are plates and illustrations of a medical-naturalistic character. Woodworm holes in the lower margin of the fascicles. In old books, with a long history, a few imperfections may be present, not always noted in the description. Pp. 8nn; 228; (2).

FULL TITLE AND AUTHOR
Trattati Varj fatti in diverse occasioni.
In Firenze, Nella Stamperia di S.A.R. per li Tartini, e Franchi, 1734.
Del Papa, Giuseppe.

CONTEXT AND SIGNIFICANCE
The work gathers several scientific and philosophical essays written by Giuseppe Del Papa in the context of post-Galilean Tuscan culture. Particularly relevant are the treatises devoted to cosmology, comets, and gravity, topics that in the early 18th century still occupied a border position between experimental science and ancient astrological beliefs. In the essay on comets, Del Papa explicitly combats the idea that these celestial phenomena are omens of wars, pestilences, or political catastrophes, proposing instead a naturalistic and rational reading of the sky. Also of great interest is the Discourse Academic on Gravity, which testifies to the spread of modern physical ideas in the Italian milieu. The volume also reflects the persistence of the Aristotelian-Ptolemaic tradition in scientific teaching, evident in the Doctrine of the World Sphere, where classical cosmological models are still discussed and reinterpreted in light of the new science.

BIOGRAPHY OF THE AUTHOR
Giuseppe Del Papa (Livorno, 1648 – Florence, 1735) was an Italian physician, natural philosopher, and academic. He studied medicine in Pisa and later became the chief physician to the Grand Duke of Tuscany. A prominent figure in Tuscan scientific culture between the 17th and 18th centuries, he sought to reconcile Aristotelian heritage with the new experimental method inaugurated by Galileo. His works range from medicine to physics, from natural philosophy to astronomy, always attentive to the relation between empirical observation and scientific rationality.

PRINTING HISTORY AND CIRCULATION
The 1734 edition was printed by the Grand Ducal Printing House of Tartini and Franchi, one of the leading Florentine printing shops of the 18th century, famous for scientific, academic, and legal publications. Del Papa’s treatise collection circulated particularly among Tuscan medical and university circles, where it was read as evidence of the post-Galilean scientific renewal. Complete copies of the engraved plate, preserved in contemporary bindings, are today relatively uncommon on the antiquarian market.

BIBLIOGRAPHY AND REFERENCES
Gamba, Serie dei testi di lingua, 1728.
ICCU/OPAC SBN, record of the Florentine edition of 1734.
EDIT16 and SBN catalogs related to the Tartini and Franchi Printing House.
Nissen, Die illustrierten Vogelbücher, Italian scientific compendia of the 18th century.
Riccardi, Biblioteca matematica italiana, I, vol. on Del Papa.
British Library, catalogs of Italian scientific works of the 18th century.
Wellcome Collection, catalogs of Italian medicine and natural philosophy.
Cicognara, museum catalogs of Italian scientific works of the 18th century.
DBI – Dizionario Biografico degli Italiani, entry “Giuseppe Del Papa.”