Johann Carl Kaiserling (3 February 1869 - 20 August 1942) was a German

pathologist Pathology is the study of the causes and effects of disease or injury. The word ''pathology'' also refers to the study of disease in general, incorporating a wide range of biology research fields and medical practices. However, when used in t ...

who was a native of Kassel-Wehlheiden. He studied medicine in

Munich Munich ( ; german: München ; bar, Minga ) is the capital and most populous city of the German state of Bavaria. With a population of 1,558,395 inhabitants as of 31 July 2020, it is the third-largest city in Germany, after Berlin and Ha ...

Kiel Kiel () is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 246,243 (2021). Kiel lies approximately north of Hamburg. Due to its geographic location in the southeast of the Jutland ...

and

Berlin Berlin ( , ) is the capital and List of cities in Germany by population, largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's List of cities in the European Union by population within ci ...

, earning his medical doctorate in 1893. In 1902, he became privatdozent at the University of

, and from 1912 was a professor of general pathology and

pathological anatomy Anatomical pathology (''Commonwealth'') or Anatomic pathology (''U.S.'') is a medical specialty that is concerned with the diagnosis of disease based on the macroscopic, microscopic, biochemical, immunologic and molecular examination o ...

at the

University of Königsberg The University of Königsberg (german: Albertus-Universität Königsberg) was the university of Königsberg in East Prussia. It was founded in 1544 as the world's second Protestant academy (after the University of Marburg) by Duke Albert of Pruss ...

.''Kaiserling, Carl''. In: Christian Tilitzki: ''Die Albertus-Universität Königsberg.'' Band 1, Akademie Verlag, 2012, , doi:10.1524/9783050060903, S. 558f. His name is associated with "Kaiserling's fixative", a means of preserving

histologic Histology, also known as microscopic anatomy or microanatomy, is the branch of biology which studies the microscopic anatomy of biological tissues. Histology is the microscopic counterpart to gross anatomy, which looks at larger structures vis ...

and

pathologic ''Pathologic'' ( rus, Мор. Утопия, Mor. Utopiya, ˈmor ʊˈtopʲɪjə, , More. Utopia – a pun on Thomas More's ''Utopia'' and the Russian word for "plague") is a 2005 role-playing and survival game developed by Russian studio Ice-Pic ...

specimens without changing the natural color. This fixative is an aqueous solution of

formalin Formaldehyde ( , ) ( systematic name methanal) is a naturally occurring organic compound with the formula and structure . The pure compound is a pungent, colourless gas that polymerises spontaneously into paraformaldehyde (refer to section F ...

potassium nitrate Potassium nitrate is a chemical compound with the chemical formula . This alkali metal nitrate salt is also known as Indian saltpetre (large deposits of which were historically mined in India). It is an ionic salt of potassium ions K+ and nitr ...

and

potassium acetate Potassium acetate (CH3COOK) is the potassium salt of acetic acid. It is a hygroscopic solid at room temperature. Preparation It can be prepared by treating a potassium-containing base such as potassium hydroxide or potassium carbonate with acetic ...

. Kaiserling is also known for his pioneer work in the field of photomicrography.

Selected publications

* ''Praktikum der wissenschaftlichen Photographie'', 1898. * ''Lehrbuch der Mikrophotographie nebst Bemerkungen über Vergrösserung und Projektion'', 1903. * ''Die mikrophotographischen Apparate und ihre Handhabung'', 1918.

References

Katalog der wissenschaftlichen Sammlungen der Humboldt-Universität zu Berlin
(biographical information)
Mondofacto Dictionary
(definition of eponym) German pathologists Academic staff of the University of Königsberg Physicians from Kassel 1869 births 1942 deaths {{Germany-med-bio-stub