Arnold Adolph Berthold
Born	26 February 1803 Soest, Germany
Died	3 January 1861 Göttingen, Germany
Citizenship	Germany
Nationality	German
Fields	Physiology, Zoology
Institutions	Georg-August University of Göttingen
Author abbreviation (zoology)	Berthold

Arnold Adolph Berthold or Arnold Adolf Berthold (1803 - 1861) was a German physiologist and zoologist. He studied medicine in Göttingen in 1819 and wrote his thesis under the direction of Johann Friedrich Blumenbach (1752-1840). Berthold became a private lecturer in 1825 and began to teach physiology at the University of Göttingen where he spent the rest of his career. He is known as a pioneer in endocrinology due to his experiments on the role of the gonads in the development of secondary sexual characteristics. He published important works on reptiles and amphibians as well as on avian physiology. In the field of entomology, he authored Natiirliche Familien of Thierreichs (1827).

Berthold is particularly famous for his work on endocrinology. In 1849, Berthold performed ground breaking experiments with chicken castration.

[edit] References and external links

• French Wikipedia

[edit] Further reading

Marc, Klein (1970–80). "Berthold, Arnold Adolphe". Dictionary of Scientific Biography. 2. New York: Charles Scribner's Sons. pp. 72-73. ISBN 0684101149. 

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