Michelini - Direzione de’ Fiumi - 1664

FIRST EDITION OF 1664 WITH 9 FOLIO PLATES: THE TREATISE THAT TRANSFORMED HYDRAULICS INTO A SCIENCE
Published in Florence in 1664, the Treatise on the Direction of Rivers represents one of the most important Italian contributions to the birth of modern hydraulics. The work arises in the context of the great territorial transformations promoted by the Medici dynasty and tackles with a mathematical method problems that for centuries had been addressed almost exclusively through practical experience: flood control, straightening of waterways, protection of riverbanks, erosion prevention, and management of alluvial deposits. The volume holds particular significance because it is the only work published by Famiano Michelini during his lifetime. A student of the Galilean scientific circle and professor of mathematics at the University of Pisa, Michelini applies to natural phenomena a quantitative approach that anticipates many developments of modern engineering. The nine folded copper-engraved plates illustrate canals, embankments, cross-sections, and hydraulic devices with extraordinary technical clarity, making the volume one of the most significant monuments of Italian applied science in the seventeenth century.

REASONS FOR COLLECTING
* First and only edition published
* Direct testimony of the Galilean scientific tradition
* Complete with the 9 folded copper-engraved plates
* Fundamental work for the history of hydraulics and civil engineering

MARKET VALUE
Italian scientific works of the seventeenth century tied to the Galilean milieu and the Medici court are particularly valued on the international market. The Treatise on the Direction of Rivers occupies a prominent position in the seventeenth-century scientific bibliography as it documents the transition from empirical hydraulics to a discipline based on measurement and mathematical calculation. Complete copies of the folded plates are markedly rarer and more sought after than incomplete specimens. In the specialized antiquarian market, complete copies in good condition generally fetch between €1,200 and €2,500, with higher results for copies in particularly fresh condition, with prestigious provenance, or of fine binding.

PHYSICAL DESCRIPTION AND CONDITION
In-4°. Collation: (2), 16 pp., 152, (2) pp. Contemporary full parchment binding with a smooth gold-tooled spine, red endband with title printed, and green sprinkled edges. Title page printed in red and black with decorative borders and woodcut initials. Complete with the 9 folded copper plates bound at the end of the volume. Some browning and minor signs of age to the leaves. Ownership stamps of Daniele Pozzoli. Overall well-preserved and particularly desirable for the completeness of the plates. In old books with centuries of history, some imperfections may be present, not always noted in the description.

FULL TITLE AND AUTHOR
Michelini, Famiano.
Trattato della direzione de’ fiumi.
Firenze, Nella Stamperia della Stella, 1664.
First edition.

CONTEXT AND SIGNIFICANCE
In the seventeenth century, water control represented one of the main technical and political challenges for the Italian states. Floods periodically undermined agriculture, trade, and the safety of populations, imposing the search for increasingly effective tools for territorial management. Michelini approaches these problems with an innovative method based on mathematics, observation of natural phenomena, and quantitative measurement. The treatise examines the behavior of currents, the erosive action of water, the formation of sediments, and the methods of building embankments and channels. For this reason, the work is considered one of the fundamental texts in the history of European hydraulic engineering and one of the most important testimonies of Italian applied science in the seventeenth century.

BIOGRAPHY OF THE AUTHOR
Famiano Michelini (1604–1665) was an Italian mathematician, natural philosopher, and engineer. Trained in the cultural milieu influenced by Galileo Galilei, he operated under the protection of the Medici court and was tutor to the grand duke Ferdinando II’s brothers. In 1648 he obtained the chair of mathematics at the University of Pisa, where he taught until his death. His studies ranged from mechanics to hydraulics, from mathematics to natural philosophy. The Treatise on the Direction of Rivers represents the culmination of his research and is the sole work published during his lifetime.

PRINTING HISTORY AND CIRCULATION
The work was published in Florence in 1664 by Stamperia della Stella and dedicated to Prince Leopold de’ Medici, founder of the Accademia del Cimento and one of the most important promoters of experimental sciences in seventeenth-century Europe. The print run was probably limited and mainly intended for technicians, mathematicians, administrators, and scholars involved in territorial management. The very specialized nature of the volume today contributes to its rarity. Complete copies of the folded plates are relatively infrequent on the international antiquarian market.

CONTEXT OF THE ILLUSTRATIONS
The nine folded copper plates constitute one of the most important aspects of the work. They illustrate sections of watercourses, embankment systems, artificial channels, current-regulation devices, and theoretical models used by the author to demonstrate his theses. They are not mere decorative illustrations, but real technical tools designed to accompany the mathematical reasoning presented in the text. Their complete presence greatly enhances the bibliographic and collectible importance of the copy.

BIBLIOGRAPHY AND REFERENCES
Riccardi, Biblioteca Matematica Italiana, II, coll. 131-133.
Cicognara, Catalogo ragionato dei libri d’arte e d’antichità, n. 945.
Gamba, Serie dei testi di lingua, p. 650.
Melzi, Dizionario di opere anonime e pseudonime, II, p. 252.
Narducci, Catalogo delle opere scientifiche italiane del Seicento, passim.
ICCU / OPAC SBN, Firenze edition, Stamperia della Stella, 1664.
WorldCat, international census of the edition.
Biblioteca Nazionale Centrale di Firenze, historical catalogs of the Medici editions of the seventeenth century.
Studies on the Accademia del Cimento and on Galilean science.
Specialist literature on Italian hydraulics and territorial engineering of the Grand Duchy of Tuscany in the seventeenth century.