Theodor Weyl

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Theodor Weyl (born January 8, 1851 in Charlottenburg near Berlin; † June 6, 1913 in Berlin ) was a German chemist and physician .

Life

His father Louis Weyl died early (1854) and Weyl was homeschooled and attended the Humanist High School in Berlin late (Abitur 1871). He has been interested in botany and music since his youth. Weyl studied from 1872 in Heidelberg, Berlin (with Emil Heinrich Du Bois-Reymond ) and Strasbourg (with Felix Hoppe-Seyler ) medicine and chemistry and received his doctorate in Strasbourg in 1877 (articles on animal and vegetable proteins). In 1878 he also graduated as a doctor there. He then worked as an assistant in the laboratory of the Physiological Institute at the University of Berlin with Eugen Baumann and in 1879 gave lectures on physiological chemistry with Isidor Rosenthal in Erlangen, where he also completed his habilitation in 1879. In 1880/81 he was at the Dohrn Zoological Station in Naples, where he worked on electric rays . In 1883 he went to the TH Berlin Hygiene Institute in Charlottenburg, where he ran his own laboratory. He dealt intensively with public health (hygiene) and went to Robert Koch's institute in 1888 . He became an internationally recognized expert on hygiene, who also advised the Turkish sultan in Istanbul on these issues and traveled to London in 1891, to Moscow and Istanbul in 1896 and to Hungary in 1895. From 1895 he gave lectures at the TH Charlottenburg and opened his own medical practice. In 1911 he received the title of professor.

He is best known for the methods of organic chemistry ( Houben-Weyl ) later worked on by Josef Houben (and many others ). It was the first manual that summarized organic chemistry for its application. Houben was co-author of the second volume of the first edition and published the second edition from 1921 and then the third edition (the last volume of which came out only after his death).

Weyl also published a multi-volume handbook on hygiene.

The Weyl test named after him is a color reaction to creatinine . He found the test during his time at Baumann in Berlin.

He later published on tuberculosis, garbage disposal, water pollution, sewage treatment and the harmfulness of tar colors (he campaigned in Berlin against harmful tar dyes used to color food). In Berlin he was secretary of the Society for Public Health for many years. As in London, he wanted to dispose of the waste incinerated and developed appropriate stoves, and together with Siemens and Halske, he designed an ozone device for water hygiene.

He was married to his maternal cousin Elise Weinberg. They had two sons: Bruno, geb. July 10, 1881 in Erlangen and Erich, b. December 20, 1886 in Berlin. Weyl was Jewish and it has been suggested that this was one reason he failed to make an academic career, although he was considered a candidate for chairs in hygiene on several occasions. Under National Socialist rule, efforts were made to keep silent about their share in the Houben-Weyl, for example in the obituary for Houben in the journal Angewandte Chemie in 1941.

Fonts

  • Organic chemistry for physicians, Berlin 1891
  • The tar colors with special regard to harmfulness and legislation , 1889
  • Influence of hygienic plants on the health of cities, Jena 1893
  • On the history of social hygiene. In: Handbook of Hygiene. Supplement 4, Jena 1904.
  • Studies on street hygiene: with special consideration of waste incineration: travel report, Jena: Fischer 1893
  • Handbook of Workers Diseases, Jena 1908
  • Editor: The Assanierung der Stadt in single representations, Leipzig: Engelmann 1900 to 1908, z. B. from Cologne 1906, Zurich 1903, Vienna 1902, Paris 1900
  • Editor and co-author: Handbuch der Hygiene, 10 volumes, Jena: Fischer 1896–1901
  • with Josef Houben: The methods of organic chemistry: a manual for work in the laboratory, Leipzig: Thieme, first from 1909 by Weyl as sole editor
    • 3rd edition, Leipzig: Thieme, 4 volumes, 1925–1941, editors Houben, J. Angerstein, K. Arndt u. a.
    • 4th edition, Leipzig: Thieme, 15, volumes, 1952–2003, editor Eugen Müller with the special assistance of O. Bayer, H. Meerwein, K. Ziegler. At the end with 162 volumes.
    • From 2000 it will be continued electronically under the title Science of Synthesis

literature

Web links

Individual evidence

  1. ↑ Hopf, Hernandez, 100 years Weyl, Houben and their handbook, p. 5.
personal data
SURNAME Weyl, Theodor
BRIEF DESCRIPTION German chemist and physician
DATE OF BIRTH January 8, 1851
PLACE OF BIRTH Charlottenburg near Berlin
DATE OF DEATH June 6, 1913
Place of death Berlin