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Conrad Gessner

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Conrad Gessner (Konrad von Gesner, Conradus Gesnerus) (26 March 1516-13 December 1565) was a Swiss naturalist born in Zurich. His three-volume Historia Animalium (1555-1558) is considered the beginning of modern zoology. He also wrote Bibliotheca Universalis (1545), which purported to contain summaries of all the known books in Latin, Greek, and Hebrew.

The tropical herb and shrub family Gesneriaceae is named after him.


From 1911 Encyclopedia Britannica:

The son of a poor furrier, he was educated in that town, but fell into great need after the death of his father at the battle of Kappel[?] (1531). He had good friends, however, in his old master, Myconius, and subsequently in Heinrich Bullinger, and he was enabled to continue his studies at the universities of Strassburg[?] and Bourges[?] (1532—1533); he found also a generous patron in Paris (1534), in the person of Job Steiger of Berne.

In 1535 the religious troubles drove him back to Zurich, where he made an imprudent marriage. His friends again came to his aid, enabled him to study at Basel (1536), and in 1537 procured for him the professorship of Greek at the newly founded academy of Lausanne (then belonging to Berne). Here he had leisure to devote himself to scientific studies, especially botany.

In 1540-1541 he visited the famous medical university of Montpellier, took his degree of doctor of medicine (1541) at Basel, and then settled down to practise at Zürich, where he obtained the post of lecturer in physics at the Carolinum. There, apart from a few journeys to foreign countries, and annual summer botanical journeys in his native land, he passed the remainder of his life. He devoted himself to preparing works on many subjects of different sorts. He died of the plague on December 13 1565. In the previous year he had been ennobled.

To his contemporaries he was best known as a botanist, though his botanical manuscripts were not published till long after his death (at Nuremberg, 1751—1771, 2 vols. folio), he himself issuing only the Enchiridion historiae plantarum (iszli) and the Catalogus plantarum (1542) in four tongues. In 1545 he published his remarkable Bibliotheca universalis (ed. by J Simler, 1574), a catalogue (in Latin, Greek and Hebrew) of all writers who had ever lived, with the titles of their works, etc. A second part, under the title of Pandeclarium sive partitionum universalium Conradi Gesneri Ligurini libri xxi., appeared in 1548; only nineteen books being then concluded. The 21st book, a theological encyclopaedia, was published in 1549, but the 20th, intended to include his medical work, was never finished.

His great zoological work, Historia animalium, appeared in 4 vols. (quadrupeds, birds, fishes) folio, 1551—1558, at Zürich, a fifth (snakes) being issued in 1587 (there is a German translation, entitled Thierbuch, of the first 4 vols., Zürich, 1563): this work is the starting-point of modern zoology. Not content with such vast works, Gesner put forth in 1555 his book entitled Mithridates de differentis linguis, an account of about 130 known languages, with the Lord's Prayer in 22 tongues, while in 1556 appeared his edition of the works of Aelian.

To non-scientific readers, Gesner will be best known for his love of mountains (below the snow-line) and for his many excursions among them, undertaken partly as a botanist, but also for the sake of mere exercise and enjoyment of the beauties of nature. In 1541 he prefixed to a singular little work of his (Libellus de lacte et operibus lactariis) a letter addressed to his friend, J Vogel, of Glarus, as to the wonders to be found among the mountains, declaring his love for them, and his firm resolve to climb at least one mountain every year, not only to collect flowers, but in order to exercise his body. In 1555 Gesner issued his narrative (Descriptio Montis Fracti sive Montis Pilati) of his excursion to the Gnepfstein[?] (6299 ft.), the lowest point in the Pilatus chain, and therein explains at length how each of the senses of man is refreshed in the course of a mountain excursion.

Lives by J Hanhari (Winterthur, 1824) and J Simler (Zürich, 1566); see also Lebert's Gesner als Arzt (Zurich, 1854). A part of his unpublished writing, edited by Prof. Schmiedel, was published at Nuremberg in 1753.



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