Johann Georg Hoyer

File:Epitaph J.G.Hoyer.jpg

Hoyer was born in a well-known Mühlhausen family and went to grammar school in Weissenfels. From 1684 he studied medicine at the University of Jena and then became a general practitioner in Mühlhausen. He visited England, Holland and Denmark in 1689 and spent four years in Copenhagen. He returned in 1693 in which time his parents' home had been destroyed in a fire. He received a doctorate from the University of Halle with a thesis that supported and translated the ideas of Friedrich Hoffmann (1660–1742){{Cite journal |last=Pierik |first=Bob |date=2023 |title=Shifting Attitudes to Drinking Common Water in Dutch Medicine, 1630–1750 |url=https://brill.com/view/journals/ehmh/aop/article-10.1163-26667711-bja10032/article-10.1163-26667711-bja10032.xml |journal=European Journal for the History of Medicine and Health |pages=1–30 |doi=10.1163/26667711-bja10032 |issn=2666-7703|doi-access=free |hdl=1871.1/d3a1981a-1f03-4928-906a-671caee8f93a |hdl-access=free }} who refuted the ideas of Cornelis Bontekoe (1647–1685) and Steven Blankaart (1650–1702){{Cite journal |last=Noak |first=Bettina |date=2020 |title=Der Kampf mit den Autoritäten – Cornelis Bontekoe (1647–1685) und Steven Blankaart (1650–1702) als Gegner der etablierten Medizin |url=https://hw.oeaw.ac.at/?arp=0x003bb759 |journal=VIRUS - Beiträge zur Sozialgeschichte der Medizin |language=de |volume=1 |pages=015–033 |doi=10.1553/virus13s015 |issn=1605-7066|doi-access=free }} that diseases arose from interactions between acid and mucus. He was made city physician by the council of Mühlhausen. In 1695 he was admitted as a member (registration number 216) of the German Academy of Natural Scientists Leopoldina under the pseudonym Apollodorus I.{{cite book |author=Neigebaur, J.D.F. |url=https://archive.org/details/geschichtederka00neiggoog/page/n225/mode/1up |title=Geschichte der Kaiserlichen Leopoldino-Carolinischen Deutschen Akademie der Naturforscher |publisher=Friedrich Frommann |year=1860 |place=Jena |page=200}} His most famous work was a medical guide published in 1716 which was a revised edition of Pharmacopoea domestica er postalis (1668) by Laurentius Blumentrost (1619–1705) which went by the title of Hauß- und Reiß-Apotheck - a manual of home and travel remedies for various diseases. This included various doubtful ideas including the recipe for a curative rosemary water that was supposedly written by the Queen Elizabeth of Hungary.{{cite book|title=A History of Inventions, Discoveries, and Origins |volume=1 |page=316| author=Beckmann, John | publisher=Henry G. Bohn|place= London |year= 1846}} In the preface Hoyer wrote that Blumentrost was driven not by honor and money to serve in Russia but was answering a divine call to duty.{{cite book|page=122|title=Ausländische Mediziner im Moskauer Russland|author= Dumschat, Sabine| publisher=Franz Steiner Verlag|year= 2006}}

Hoyer had two sons, physician Christoph Eugen Hoyer and lawyer Georg Leopold Hoyer. A memorial is in the Marienkirche in Mühlhausen.

{{reflist}}

• [https://www.digitale-sammlungen.de/en/details/bsb10476208 Hauß- und Reiß-Apotheck] (1716)
• [https://www.digitale-sammlungen.de/en/view/bsb10674403 Disputatio inauguralis medica de Saliva et Ejus Morbis] (1694)
• [https://books.google.com/books?id=xiFgAAAAcAAJ Eigentliche Untersuchung der Säure und des Schleimes] (1696)

{{Authority control}}

{{DEFAULTSORT:Hoyer, Johann Georg}}

Category:1663 births

Category:1738 deaths