Editing 1849 in science (section)

==Biology==
* [[Arnold Adolph Berthold]] pioneers [[endocrinology]] with his observations on the operation of the [[testicle]]s in [[rooster]]s.<ref>{{cite journal|last=Berthold|first=A. A.|year=1849|title=Transplantation der Hoden|journal=Arch. Anat. Physiol. Wiss. Med.|volume=16|pages=42–6}}</ref>
* Nikolai Annenkov begins publication of ''Flora Mosquensis Exsiccata'', the first [[Russia]]n [[Flora]].<ref>{{cite journal|first=Alexander|last=Petrunkevitch|title=Russia's Contribution to Science|journal=Transactions of the Connecticut Academy of Sciences|volume=23|year=1920|page=232}}</ref>
* [[Ephraim Wales Bull]] cultivates the [[Concord grape]] in Massachusetts.<ref>{{Cite web|title=The History|url=http://www.concordgrape.org/bodyhistory.html|access-date=2025-04-21|publisher=Concord Grape Association}}</ref>
* [[Richard Owen]] publishes ''On the Nature of Limbs'' and begins publication of ''A History of British Fossil Reptiles''.
* [[William Thompson (naturalist)|William Thompson]] begins publication (in London) of ''[[The Natural History of Ireland]]'' with the first volume on birds.