Johann Heinrich Ludwig Flögel

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Johann Heinrich Ludwig Flögel (born June 10, 1834 in Glückstadt , † January 25, 1918 in Ahrensburg ) was a German lawyer, astronomer, natural scientist and nature photographer. Short forms of the name are: Johann Heinrich Flögel , Johann HL Flögel and Johann Flögel .

Life

Johann Heinrich Flögel was a versatile researcher. From 1861 to 1863 he first studied law, then was the financial accountant of the Schleswig-Holstein government (1865), office manager of the Royal Accounting Commission (1867), parish vogt in Kiel (1871) and at the same time accountant of the grand ducal widow's orphanage and, in 1875, notary and parish vogt in Bad Bramstedt . For his outstanding contributions in the field of science Flögel was already on 19 June 1875 by the Kiel University the honorary doctorate appointed. From 1892 Flögel settled as a private scholar in Ahrensburg , where he continued to undertake various scientific studies and published them in the scientific journals of the time. This mainly included biological studies on insects. His collection of 416 microscopic specimens of 66 native aphid species and the associated 110 anatomical specimens, created using his own method, burned in the Hamburg Zoological Museum in 1943 - as did all his other aphid specimens and the aphid gall specimens stored in the Hamburg herbarium .

Schneestern photograph from December 4th 1879 in the evening. - Magnified 147 times, fell at minus 9 ° Celsius.

According to the latest state of the art, Flögel is the first person who succeeded in taking photographic images of snow crystals . On the edges of the recordings, he noted the recording conditions such as time, temperature and magnification. The first snow crystal picture is dated February 1, 1879. That is around six years earlier than the photo taken by Wilson Bentley on January 15, 1885, which was previously the first photo of a snow crystal.

The first picture with the number 12 was taken on February 1st, 1879. It shows “2 snow tables with flower colorithic rays, magnification 46x. These panels fell out of the blue onto the plate laid out and were so small that they could hardly be seen with the naked eye. The much smaller tablet sitting parasitically on one table also shows the shape of the petals. Belongs to the rarest occurrences! "

estate

Flögel's written estate is kept in the Stormarn district archive in Bad Oldesloe . It was handed over to the Stormarn district archive in 2008 by the Museum for Bergedorf and the Vierlande. His photographs are in the Ahrensburg City Archives .

memory

The Ahrensburg Historical Working Group and the City Archives are planning an exhibition in May 2018 on the occasion of Flögel's 100th anniversary of death. The city of Ahrensburg will name a street in the Beimoor-Süd industrial area after the naturalist.

Works

  • The Diatomaceae in the basic samples of the expedition to investigate the Baltic Sea. Kiel 1873. (with stone tablets)
  • About the height of the northern lights and their position in space. Kiel 1873.
  • About the lips of some oxyuris , Journal of Scientific Zoology B. 19, H. 2, p. 234 ff.
  • Investigations into the structure of the cell wall in the genus Pleurosigma , M. Schultzens Archive for Microscopic Anatomy, year 1870, B. 6, p. 472 ff. (With plates)
  • About the striated muscles of the mites, M. Schultzens Archive for Microscopic Anatomy, year 1872, B. 8, p. 69 ff.
  • About the finer structure of the arthropod brain . Tageblatt of the Assembly of German Natural Scientists and Doctors 49, 115–120. 1876
  • On the uniform structure of the brain in the various insect orders. Journal of Scientific Zoology 30, 556-592. 1878
  • Note concerning the olfactory bodies in the insect brain. Zoologischer Anzeiger 6, 539-540. 1883
  • Serial preparations. Zoological Anzeiger 6, 565.1883
  • My dark box. Zoologische Anzeiger 6, 566-567. 1883
  • About the nervous system of Demodex folliculorum . Negotiations of the Society of German Natural Scientists and Doctors 64 (1), 120–121. 1891

Awards

  • Honorary doctorate from the University of Kiel
  • Honorary membership of the Royal Microscopic Society

Literature on birds

  • Nicholas J. Strausfeld, Ernst-August Seyfarth: Johann Flögel (1834–1918) and the birth of comparative insect neuroanatomy and brain nomenclature. In: Arthropod Structure & Development. 37, 2008, p. 434, doi: 10.1016 / j.asd.2008.02.003 .
  • Sibylle Bremer: Who owns the first photo flake? Schleswig-Holsteinische Landeszeitung, Pinneberger Tageblatt u. a. dated February 13, 2010.

Other sources

  • Herbert Weidner, Wilhelm Wagner: The Entomological Collections of the Zoological State Institute and Zoological Museum, VII. Part: Insecta IV; Mitteilungen.Hamburg.Zool.Mus.Inst, 1968, vol. 65, pages 123 ff. (160) - [1]
  • Eduard Alberti : Lexicon of Schleswig-Holstein-Lauenburg and Eutinian writers 1866–1883, Volume 1 - [2]

Web links

Commons : Johann Heinrich Ludwig Flögel  - Collection of images, videos and audio files

Individual evidence

  1. ↑ published in: negotiations of the Society of German Natural Scientists and Doctors 1902, vol. 73, page 262 ff.
  2. ↑ Transferred the original text of the picture with the number 12 from the Sütterlin script .
  3. ^ Johann Flögel: Official, natural scientist and nerd , NDR from February 19, 2018, accessed on February 20, 2018
  4. ↑ https://www.augias.net/2018/02/06/8826/ Kreisarchiv Stormarn presents restored and digitized cultural assets , accessed on February 20, 2018
personal data
SURNAME Flögel, Johann Heinrich Ludwig
BRIEF DESCRIPTION German lawyer, astronomer, zoologist, botanist and nature photographer
DATE OF BIRTH June 10, 1834
PLACE OF BIRTH Glückstadt
DATE OF DEATH January 25, 1918
Place of death Ahrensburg