Adolph von La Valette-St. George explained

Adolph von La Valette-St. George (14 November 1831 in Schloss Auel  - 29 November 1910 in Bonn) was a German zoologist and anatomist, known for his research in developmental biology.

He studied at the universities of Berlin, Munich and Würzburg, where he was a student of Albert von Kölliker. In 1855 he obtained his PhD with the thesis "Symbolae ad Trematodum evolutionis historiam",^[1] then in 1857 received his medical doctorate. In 1858 he qualified as a lecturer at the University of Bonn, where in 1862 he became an associate professor.^[2] In 1875, he was named a full professor and successor to Max Schultze as director of the anatomical institute at Bonn.^[3]

He is credited with coining the terms spermatocyte (1876), spermatogonium (1876) and spermatid (1886).^[4] Some sources mention La Valette-St. George as the first to observe what would later be known as the Golgi apparatus (1865, 1867), a structure that he reportedly described in the sexual cells of snails.^{[5] [6] [7]}

Published works

With Heinrich Wilhelm Gottfried von Waldeyer-Hartz (from 1874) and Oscar Hertwig (from 1889), he was co-editor of the journal "Archiv für mikroskopische Anatomie".^{[8] [2]} The following are a list of some of his noted scientific works:

• Entwicklung der Trematoden, 1859  - Development of trematodes.
• Studien über die Entwicklung der Amphipoden, 1860  - Studies on the development of amphipods.
• Ueber die Entwicklung der Isopoden, 1864  - On the development of isopods.
• Ueber eine neue Art amöboider Zellen, 1865  - On a new kind of amoeboid cell.
• Ueber die Genese der Samenkörper, 1865  - On the genesis of spermatic bodies.
• Ueber den Keimfleck und die Deutung der Eitheile, 1866  - On the germinal spot and the construction of egg components.
• Entwicklung der Samenkörper beim Frosch, 1868  - Development of the spermatic bodies in frogs.
• Ueber einen neuen Fischbrutapparat, 1882  - On a new fish brooder.
• Zelltheilung und Samenbildung bei Forficula auricularia, 1887  - Cell division and spermatogenesis of Forficula auricularia.
• Ueber innere Zwitterbildung beim Flusskrebs, 1892  - On inner hermaphroditism in crayfish.
• Zwitterbildung beim kleinen Wassermolch, 1895  - Hermaphroditism in small newts.
• Zur Samen- und Eibildung beim Seidenspinner (Bombyx mori), 1897  - Sperm and egg formation in silkworms (Bombyx mori).
• Die Spermatogenese bei den Säugethieren und dem Menschen, 1898  - Spermatogenesis of quadrupeds and humans.^[2]

Notes and References

1. https://babel.hathitrust.org/cgi/pt?id=hvd.32044107333635;view=1up;seq=3 Symbolae ad trematodum evolutionis historiam
2. http://www.zeno.org/Pagel-1901/A/La+Valette+St.+George,+Adolph+Freiherr+von La Valette St. George, Adolph Freiherr von
3. https://books.google.com/books?id=Amk2AQAAMAAJ&dq=%22La+Valette-St.+George%22+1831&pg=PA340 Studies from the Dept. of Anatomy, University of Illinois College ..., Volume 3
4. https://books.google.com/books?id=zHfjDY5o1GsC&dq=%22La+Valette-St.+George%22+spermatid&pg=PA446 The Cell in development and inheritance
5. https://books.google.com/books?id=ASG5E2U-aTwC&dq=%22La+Valette-St.+George%22+Golgi&pg=PA88 Eminent Neuroscientists Their Lives and Works
6. https://books.google.com/books?id=CcoACAAAQBAJ&dq=%22La+Valette-St.+George%22+Golgi&pg=PA6 The Golgi Apparatus
7. https://books.google.com/books?id=Eb1TaY6P8HwC&dq=%22La+Valette-St.+George%22+Golgi+snail&pg=PA257 The Golgi Apparatus: The First 100 Years
8. https://catalog.hathitrust.org/Record/000639987 Archiv für mikroskopische Anatomie