Fabbroni, Giovanni Valentino Mattia, 1752-1822

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Italian scientist.

From the description of Correspondence, 1775-1863. (Unknown). WorldCat record id: 84331787

Sir Joseph Banks was an English naturalist and president of the Royal Society.

From the guide to the Sir Joseph Banks papers, 1766-1820 (bulk), 1766-1820, (American Philosophical Society)

Fabbroni was an Italian naturalist and director of the Mint in Florence.

From the description of Papers, ca. 1770s-1875. (American Philosophical Society Library). WorldCat record id: 122364928

Giovanni Valentino Fabbroni (1752-1822) was an Italian naturalist, agronomist, economist, and politician. He was a founder and vice director of the Natural History Museum in Florence and also served as director of the Mint of Tuscany. His varied activities included electrochemical experiments that helped pave the way for subsequent developments, most significantly the invention of the battery; studies in currency, including contributions to the creation of the metric system; and proposals related to agricultural and economic reform in Tuscany. Fabbroni maintained an extensive correspondence with a wide variety of individuals in Europe and the United States.

Little is known about Fabbroni’s personal life, including his upbringing and education; a hint that he may have come from less then favorable circumstances is provided by R. Lee who wrote in her Memoirs of Baron Cuvier (1833) that, “Like most of those who have attained great celebrity, the early years of M. Fabbroni were passed in struggle and difficulty.” He was born in 1752 in Florence, Italy, where he also spent most of his adult life. In 1775, he collaborated with Felice Fontana (1730-1805) in the founding of the “Imperiale e Regio Museo di Fisica e Storia Naturale,” a natural history museum. For the next thirty years, Fabbroni served as the museum’s vice director under Fontana, who was appointed its first director.

Fabbroni was an advocate of the chemical revolution of Antoine-Laurent Lavoisier (1742-1794, APS 1775) and at the museum, which had its own laboratory, he and Fontana conducted research in pneumatic chemistry and electrochemistry. One of his research interests concerned animal electricity, which had only recently been demonstrated by Luigi Galvani (1737-1798). Fabbroni proposed that galvanism may be due solely to chemical affinities, and that electricity could be generated only by the contact of dissimilar bodies when they reacted together chemically, differed in temperature, or were rubbed together. Fabbroni’s findings, which he presented before the Accademia dei Georgofili in 1793, set the stage for a favorable reception in 1800 of Alessandro Volta's (1745-1827) voltaic pile, the first battery that produced a reliable, steady current of electricity. Fabbroni’s ideas also influenced the work of Anthony Carlisle (1768-1842), William Nicholson (1753-1815) and Humphry Davy (1778-1829, APS 1810), who may have learned of them from translations of Fabbroni’s paper published in the Journal de physique (1799), the Journal of Natural Philosophy (1800), and the Philosophical Magazine (1800). Fabbroni also often assisted Grand Duke Peter Leopold (1747-1792), who conducted scientific experiments as a hobby.

In 1778 Fabbroni wrote the first of many letters to Thomas Jefferson. Jefferson had learned of Fabbroni from their mutual friend Philip Mazzei (1730-1816) as early as 1767, and he had encouraged the young man to move to Virginia to become music teacher and tutor to his children. Fabbroni evidently was inclined to accept the offer when the Duke of Tuscany selected him to travel through England and France to observe scientific and technological progress in each nation. Frabbroni accepted the Duke’s invitation, and while there is no evidence that he ever visited the United States, he subsequently corresponded with Jefferson on a variety of topics, including meteorology and music, which Jefferson famously described in a letter to the Italian as "the favorite passion of my soul.”

In 1778 Fabbroni traveled to England, where he recorded his observations in a series of diaries. During his stay in London he became acquainted with Benjamin Franklin as well as Richard Price (1723-1791, APS 1785), Joseph Priestley (1733-1804, APS 1785), Benjamin Vaughan (1751-1835, APS 1786), and other radicals, many of whom were members of the Club of Thirteen, an intellectual club founded in the 1770s. Fabbroni apparently attended some of their meetings and he also carried their letters and parcels to Paris.

In 1780 Fabbroni published in Paris his Reflexions sur l'état actuel de l'agricolture, in which he developed new techniques of agronomy and cultivation based on procedures of pneumatic chemistry. He suggested, for example, replacing crop rotation and tilling with a series of plants grown together. The book had a considerable impact on farming in Tuscany. More generally, Fabbroni's work contributed to the process of applying chemistry to study the plant world, which eventually developed into the disciple of agricultural chemistry.

In 1783 Fabbroni became a member of the Accademia dei Georgofili, a learned society dedicated primarily to the natural sciences and agricultural reform, and the following year he commenced work as its correspondence secretary, acting as the intermediary between the Accademia and the museum. In addition, the Tuscan government frequently called on Fabbroni to contribute plans and ideas toward the improvement of Tuscany’s economy, including the location of potentially lucrative coal deposits. The scholarly works he published during this period include essays on topics such as currency, economics, and government.

Fabbroni was influential in the development of the metric system and in its introduction to Italy. In the late 1790s the French government sought to establish a mass standard that would aid in the regulation of commerce. Fabbroni was selected as a member of a committee charged with determining the mass of a cubic decimeter of water. At the time the decreed definition of the kilogram specified water at 0°C, its highly stable temperature point. In 1799, after several years of research, Fabbroni and the French chemist Louis Lefèvre-Gineau (1751-1829) redefined the temperature at which water reaches maximum density as 4°C, as opposed to 0°C. Based on their calculations, a new Kilogram was manufactured and delivered to the Archives of the Republic. The prototype was ratified, and the new standard eventually stood for the next ninety years.

Overall, Fabbroni’s activities were unsually varied. Lee wrote in her biography of Fabbroni’s friend Georges L. C. F. D. Cuvier (1769-1832), who evidently penned an eulogy for Fabbroni, that “we find [Fabbroni], at one time, charged with delicate political missions; at others, with the direction and administration of the mint at Florence [1800]; seeking the causes of pestilence, and the means of prevention; making roads, fixing conductors for lightning, and aiding the state by his counsels.” His diverse interests are also reflected in Fabbroni’s long and varied list of correspondents, ranging from artists to soldiers, aristocrats to scientists, and politicians to economists. His correspondents include, for example, Davy, Mazzei, Cuvier, Priestley, Sir Joseph Banks (1743-1820), Johann Reinhold Forster (1729-1798, APS 1793), Alexander von Humboldt (1769-1859, APS 1804), Angelica Kauffmann (1741-1807), and the Marquis de Lafayette (1757-1834, APS 1781).

Fabbroni died in 1822 in Pisa, Italy.

From the guide to the Giovanni Valentino Mattia Fabbroni papers, ca. 1770s-1875, Circa 1770-1875, (American Philosophical Society)

Humphry Davy (1778–1829, APS 1810) was a British chemist and pioneer in the field of electrochemistry. He was a major figure in the reformed chemistry movement initiated by the French scientist Antoine-Laurent Lavoisier (1743-1794, APS 1775).

Davy was the son of an impoverished Cornish woodcarver. As a youth, he was apprenticed to an apothecary-surgeon with whom he pursued a regimen of self-study that included theology, philosophy, poetics, several languages, as well as, botany, chemistry, anatomy, mechanics and physics. In subsequent years, when most of his time was occupied by scientific endeavors, Davy exhibited a particular fondness for philosophical writings and poetry. In 1799 he published his first poems.

However, it was Davy’s aptitude for scientific matters that soon attracted attention. One of the people who recognized his abilities was Davies Giddy (1767-1839), a Member of Parliament with scientific interests. Giddy eventually became Davy’s patron. He allowed his protégé access to his library; furthermore, he persuaded Davy’s master to release him from his indenture so that he could become the assistant to Thomas Beddoes, Giddy’s former teacher at Oxford.

In 1798 Davy joined Beddoes's Pneumatic Institution in Bristol which was established for the purpose of investigating the medical powers of newly discovered airs and gases. There, he made the acquaintance of fellow scientists as well as individuals with literary interests, including Samuel Taylor Coleridge (1772-1834), Joseph Cottle (1770-1853), and Maria Edgeworth (1767-1849). In 1797 Davy read Lavoisier’s Traité élémentaire de chimie in French, a study that made a deep impression on him. Two years later he published an essay in which he refuted Lavoisier’s caloric; that same year he established his reputation as a chemist with his book Researches, Chemical and Philosophical, chiefly concerning Nitrous Oxide . . . and its Respiration in which he suggested that nitrous oxide (laughing gas) be used as an anesthetic in minor surgical operations. Davy had arrived at his conclusions after a series of risky experiments with different gases on himself. He described his “emotions” after awakening from the effects of laughing gas as “enthusiastic and sublime.”

Davy engaged in electrochemical experiments that led to several discoveries, including the recognition that the production of electricity was linked to a chemical reaction. He also isolated and analyzed the chemical elements potassium, sodium, magnesium, calcium, strontium, and barium. One of his best-known contributions to the field was his conclusion that, contrary to Lavoisier’s claims, there was no material basis for acidity. In 1810 he announced that the green gas contained in sea salt was an element. He named it chlorine.

As a strong promoter of applied science, Davy also engaged in various practical projects. He researched the chemistry of tanning, promoted improvements to agricultural practices, and developed a miner’s lamp that inhibited the ignition of the methane gas commonly found in mines. Furthermore, Davy was known as an effective lecturer. He made scientific topics accessible to an audience that extended beyond a small circle of fellow scientists.

Davy’s accomplishments were recognized with numerous awards and honors. In 1801 he joined the faculty of the Royal Institution in London. He became a fellow of the Royal Society in 1803, was awarded the Copley medal in 1805, and served as the Society’s president from 1820 to 1827. He was knighted in 1812 and created a baronet in 1818. He was also a founder of the Geological Society of London, the London Zoo and the Athenaeum.

Davy was married to Jane Apreece Kerr, a wealthy and well-connected widow. They did not have children. In 1829, he suffered a stroke while vacationing in Italy. He died a few days later.

From the guide to the Sir Humphry Davy correspondence, 1803-1822, 1803-1822, (American Philosophical Society)

Archival Resources
Role Title Holding Repository
referencedIn Thomas Jefferson Papers, 1606-1943, (bulk 1775-1826) Library of Congress. Manuscript Division
creatorOf Sir Humphry Davy correspondence, 1803-1822, 1803-1822 American Philosophical Society
creatorOf Giovanni Valentino Mattia Fabbroni papers, ca. 1770s-1875, Circa 1770-1875 American Philosophical Society
creatorOf Sir Joseph Banks papers, 1766-1820 (bulk), 1766-1820 American Philosophical Society
creatorOf Fabbroni, Giovanni Valentino Mattia, 1752-1822. Catalog of the library of Giovanni Fabbroni, [ca. 1805]. Grolier Club
referencedIn Banks, Joseph, 1743-1820. Papers, 1766-1820 (bulk). American Philosophical Society Library
referencedIn Giovanni Valentino Mattia Fabbroni papers, ca. 1770s-1875, Circa 1770-1875 American Philosophical Society
referencedIn Filippo Mazzei papers, 1730-1922 (inclusive), 1780-1816 (bulk), Bulk, 1780-1816, 1730-1922 American Philosophical Society
creatorOf Fabbroni, Giovanni Valentino Mattia, 1752-1822,. Autograph letter signed from Giovanni Valentino Mattia Fabbroni, Paris, to unidentified recipient, 1778 June 2. Folger Shakespeare Library
referencedIn Jefferson, Thomas, 1743-1826. Thomas Jefferson papers, 1606-1943 (bulk 1775-1826). Library of Congress
creatorOf Fabbroni, Giovanni Valentino Mattia, 1752-1822. Correspondence, 1775-1863. American Institute of Physics, Niels Bohr Library
referencedIn Mazzei, Filippo, 1730-1816. Papers, 1730-1922 (inclusive), 1780-1816 (bulk). American Philosophical Society Library
referencedIn Davy, Humphry, Sir, 1778-1829. Correspondence, 1803-1822. American Philosophical Society Library
creatorOf Fabbroni, Giovanni Valentino Mattia, 1752-1822. Papers, ca. 1770s-1875. American Philosophical Society Library
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associatedWith Savi, Gaetano, 1769-1844. person
associatedWith Scarpa, Antonio, 1747-1832 person
associatedWith Scheel, P person
associatedWith Schreiber person
associatedWith Schubart, Barone de person
associatedWith Scopoli, G A person
associatedWith Scopoli, Giovanni Antonio, 1723-1788 person
associatedWith Sismondi, Jean Charles Léonard Simonde de, 1773-1852 person
associatedWith Smith, Pierce person
associatedWith Smithson, James, 1765-1829. person
associatedWith Société d'Agriculture du départment de la Seine. person
associatedWith Society of Antiquaries of London. person
associatedWith Solander, Daniel Charles, 1733-1782. person
associatedWith Soldani, Ambrogio, 1733-1808 person
associatedWith Starke, Mariana person
associatedWith Sutro Library. corporateBody
associatedWith Talleyrand-Perigord, Charles Maurice de, prince de Benevento, 1754-1838 person
associatedWith Targioni-Tozzetti, Ottaviano, 1755-1829 person
associatedWith Targioni-Tozzetti, Ottaviano, 1759-1829 person
associatedWith Targioni Tozzetti, Ottaviano, 1833-1899. person
associatedWith Targioni Tozzetti, Ottaviano, 1833-1909 person
associatedWith Tarnowski, Valérie person
associatedWith Tarnowski, Vladislas person
associatedWith Temple, Henry, 2nd Viscount Palmerston, 1739-1802 person
associatedWith Tessier, M. (Alexandre-Henri), 1741-1837. person
associatedWith Thiebaut-de-Berneaud, Arséne, 1777-1850 person
associatedWith Thiébaut de Berneaud, Arsenne, 1777-1850. person
associatedWith Thouin, André, 1747-1824 person
associatedWith Throckmorton person
associatedWith Thunberg, Carl Peter, 1743-1828. person
associatedWith Tiraposchi, Gerolamo, Abbate, 1731-1794 person
associatedWith Tobler & Figli person
associatedWith Tochon d'Annecy, Joseph Francois, 1772-1820 person
associatedWith Torlonia, Marino person
associatedWith Ulrici, Giovanni person
associatedWith Van Mons, Jean Baptiste, 1766-1842 person
associatedWith Van Swinden, Jan Henrik, 1746-1823 person
associatedWith Varges, Edoardo, conte person
associatedWith Varges, Edouardo, conte person
associatedWith Vassalli-Eandi, Antonio Maria, 1761-1825 person
associatedWith Vassalli(?), M person
associatedWith Vassili-Eandi, Antonio Maria, 1761-1825 person
associatedWith Vassilli-Eandi, Antonio Maria, 1761-1825. person
associatedWith Vaughan, Benjamin, 1751-1835 person
associatedWith Vauquelin, Louis Nicholas, 1763-1829 person
associatedWith Ventenat, Etienne Pierre, 1757-1808 person
associatedWith Venturi, Giovanni Battista, 1746-1822. person
associatedWith Voltaire, 1694-1778 person
associatedWith Walsh, John?, 1725(?)-1795. person
associatedWith Webster, Elizabeth person
associatedWith Wedgwood, John, 1766-1844 person
associatedWith Wedgwood, Josiah, 1730-1795. person
associatedWith Wedgwood, Thomas, 1730-1793 person
associatedWith Whitehurst, John, 1713-1788. person
associatedWith Wicar, Jeanne Baptiste, 1762-1834 person
associatedWith Wilson, Andrew, 1718-1792 person
associatedWith Woodford, Thomas person
Place Name Admin Code Country
Canada
Pitcairn Island
Italy
Naturalists - England
Oceania
France
Italy--Florence--19th century
United States
France
Italy
Brazil
Italy
Subject
Locks (Hydraulic engineering)
Anatomy
Voyages and travels
Science and technology
Geology
Mineralogy
Medicine
Locks (Hydraulic engineering)--Middle Atlantic states--History
Agriculture
Museums--History
Machinery--Drawings
Chemistry
Botany
Weights and measures
Coinage
Tools--Drawings
Natural history
Horticulture
Bridges
Marine biology
Manufacturing processes
Private libraries--Catalogs
Beyond Early America
Occupation
Naturalists--19th century.--Italy
Book collectors--19th century.--Italy
Scientists
Function

Person

Birth 1752-02-13

Death 1822-12-17

Italians

French,

Italian,

Latin,

English

Information

Permalink: http://n2t.net/ark:/99166/w66q2fj7

Ark ID: w66q2fj7

SNAC ID: 55826691