Friedrich von Hagenow

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Friedrich von Hagenow
Friedrich von Hagenow.jpg
as a young man
FriedrichvonHagenow.jpg
and at the set age.

Karl Friedrich Hagenow , from 1802 by Hagenow , from 1863 by Hagenow-Nielitz (born January 19, 1797 at Gut Langenfelde ; †  October 18, 1865 in Greifswald ) was a natural scientist and prehistorian of the early 19th century in Greifswald.

family

Frederick Hagenow was the eldest son of February 16, 1802 in Vienna in the kingdom nobility raised landowner Friedrich Christoph Karl Hagenow (1758-1812), lord of the manor on the estates angels watch , Glewitz , Medrow , Benken Hagen, Kordsmühlen and Langenfelde (all county Grimmen in West Pomerania ), and Marie Mentz (1772–1844), landlady on Nielitz (Grimmen district).

He married on June 4, 1819 at Gut Ahrenshagen in the Franzburg district of Franzburg Elisabeth Karoline Hennings (* Gut Ahrenshagen September 9, 1791; † 1867 in Greifswald), a daughter of the pastor of Ahrenshagen. The marriage resulted in three daughters and two sons. Two of the children died early. The son Friedrich-Karl later took over the Nielitz estate, one daughter married the Szczecin Medical Councilor Glubrecht, another the Greifswald major von Winterfeld .

Life

His tutor, Gustav Salomon Tillberg , who later became a professor of mathematics and physics , gave Hagenow numerous suggestions for his scientific work in the fields of mathematics, technology , agriculture and veterinary medicine . Originally from Sweden, Tillberg, who received his doctorate in Greifswald in 1803 , led his pupil to university entrance at the age of 12. In 1809 Friedrich von Hagenow began studying applied mathematics and mechanics at the University of Greifswald . At the request of his father, agriculture and veterinary medicine were also part of his studies.

After the death of his father in 1812, he worked as an adjunct in the Dargun Justice Office in Mecklenburg until 1814 , where he received training in economics and administration. In 1815 he moved to learn about practical agriculture as a volunteer on the estate of his relatives in Groß Schoritz on Rügen . The contact with Pastor Bernhard Olivier Frank (1758–1833) from Bobbin , who was very interested in the prehistory of Rügen , especially the visit to his then well-known scientific and prehistoric collection, aroused his interest in the questions of classical studies .

From 1817 to 1818 he did his military service as a one-year volunteer with the Guard Rifle Battalion in Berlin , where he attended lectures by the agricultural scientist Albrecht Daniel Thaer at the Friedrich Wilhelms University . He then lived with his family until 1823, he had married in 1819, as a tenant on the Poggenhof near Schaprode . Agriculture did not turn out to be Hagenow's actual calling, so that in 1823 he settled as a private scholar in Loitz near Demmin . There he developed several optical and physical instruments for the University of Greifswald and, in 1824, a process to combine hardened steel with iron and other metals without losing hardness .

Special charter of the island of Rügen

Since 1825 he was in contact with the President of the Province of Pomerania , Johann August Sack , who appointed him to the Society for Pomeranian History and Archeology . In 1826, along with Johann Gottfried Ludwig Kosegarten and Karl Schildener, he was one of the founding members of the Rügisch-Vorpommerschen department based in Greifswald. He offered to carry out the land survey for New Western Pomerania decided by the Szczecin Department in 1825 . In the same year he began work on Rügen, which he was able to complete in 1828. His " Special Charter of the island of Ruegen ," in which he described the early 18th century known prehistoric grave mounds , megalithic tombs , deserted villages and sacrificial stones mapped, was the first topographically accurate Rügen map.

In 1832 he moved to Greifswald, where he founded the first German chalk factory on the Ryck , which he equipped with machines he designed himself. At the same time he had leased all of the chalk quarries on Rügen. From 1835 to 1838 he held lectures on applied mathematics at the Agricultural Academy in Eldena . During this time he shifted the focus of his scientific research to paleontology . Through his facility for processing the chalk extracted on Jasmund , he came into possession of a large number of fossils from the Rügen chalk , which he familiarized himself with. His research in this area culminated in a three-part monograph that appeared between 1839 and 1842 in the New Yearbook for Mineralogy, Geognosy, Geology and Petrefact Research . In order to facilitate the microscopic drawing of the fossils, he invented the "Dikatopter" in 1851, a kind of Camera Lucida .

Memorial plaque on the Gülzowshof church

Further inventions were an improved bloodletting catcher (1850) and a method of restoring old seals and making new stamps afterwards (1851).

Friedrich von Hagenow was temporarily managing director of the German Geological Society and was considered one of the best geologists of his time. He was in correspondence with Alexander von Humboldt and Leopold von Buch , among others .

In 1843 he was appointed government conductor. In 1845 Hagenow inherited the maternal estate Nielitz, the income of which made him a rich man.

On December 9th, 1863 he received the royal Prussian permission to increase names and coats of arms as "von Hagenow-Nielitz" , named after his estate Nielitz.

Health problems gradually set narrow limits to the enjoyment of his prosperity through extensive travel and collecting. A protracted eye condition led to the researcher's total blindness at the age of 57. On October 18, 1865, Hagenow died of complications from a stroke. He was buried in Gülzowshof .

His prehistoric collection was bought by the Provincial Museum for New Western Pomerania and Rügen in Stralsund. Further collections went to the museum in Szczecin.

Research priorities

Hagenow worked as a private scholar in the field of natural sciences and humanities . For the subjects of paleontology and prehistory and early history , his work on the chalk fossils of New West Pomerania and Rügen (1842), the bryozoa of the Maastricht chalk (1851) and forgeries of rune stones (1826) and pile dwellings (1865) are still of historical significance today. As early as 1820 his "Contributions to the ornithology of Pomerania" appeared. The "Special Charte der Insel Rügen" (Berlin 1829) documents the existence of prehistoric burial mounds and large stone graves before the first major destruction of prehistoric grave complexes due to the intensification of agriculture at the end of the 19th century.

honors and awards

Memberships

Fonts

  • Aspidura Ludeni. In: Palaeontographica, first volume, first delivery August 1846, Cassel 1851, pp. 21–22, Tab. I

literature

Web links

Individual evidence

  1. ^ Friedrich von Hagenow: Monograph of the Rügen chalk petrifications.
    • I. Division: Phytolites and Polyparia. New yearbook for mineralogy, geognosy, geology and petrefacts. Born in 1839, digitized on archive.org
    • Section II: Radiaries and Annulates. New yearbook for mineralogy, geognosy, geology and petrefacts. Born in 1840, digitized on archive.org
    • III. Division: Mollusks. New yearbook for mineralogy, geognosy, geology and petrefacts. Born in 1842, digitized on archive.org
personal data
SURNAME Hagenow, Friedrich von
ALTERNATIVE NAMES Hagenow, Karl Friedrich von (full name); Hagenow-Nielitz, Karl Friedrich von
BRIEF DESCRIPTION German scientist and prehistorian
DATE OF BIRTH January 19, 1797
PLACE OF BIRTH Gut Langenfelde
DATE OF DEATH October 18, 1865
Place of death Greifswald