Background
Justus Ludwig Adolf Roth was born at Hamburg, Germany on September 15, 1818, the son of a pharmacist.
University of Jena, Jena, Thuringia, Germany
Roth studied pharmacology and geology at the universities of Berlin, Tübingen, and Jena. His professors included Heinrich and Gustav Rose and Quenstedt. He obtained his Ph.D. in 1844 at the University of Jena.
https://www.amazon.com/Gesteins-Analysen-tabellarischer-%C3%9Cbersicht-kritischen-Erl%C3%A4uterungen/dp/1247945545/ref=sr_1_fkmr0_1?keywords=Die+Gesteinanalysen+in+tabellarischer+%C3%9Cbersicht+und+mit+kritischen+Erl%C3%A4uterungen&qid=1579179544&s=books&sr=1-1-fkmr0
1861
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Issue 28
https://www.amazon.com/Superior-Analyses-Igneous-Rocks-Tabellen/dp/1276681038/ref=sr_1_2?qid=1579179201&refinements=p_27%3AJustus+Ludwig+Adolf+Roth&s=books&sr=1-2&text=Justus+Ludwig+Adolf+Roth
1905
geologist mineralogist petrologist scientist
Justus Ludwig Adolf Roth was born at Hamburg, Germany on September 15, 1818, the son of a pharmacist.
Roth studied pharmacology and geology at the universities of Berlin, Tübingen, and Jena. His professors included Heinrich and Gustav Rose and Quenstedt. He obtained his Ph.D. in 1844 at the University of Jena.
From 1845 to 1848 he directed the Roth’sche Apotheke in Hamburg, which he had inherited from his father, but then leased it and moved to Berlin to dedicate himself entirely to the earth sciences.
During an assistantship at a pharmacy in Dresden, Roth published his first treatise, Die Kugelformen im Mineralreich... ( 1844), a publication to which the painter Ludwig Richter contributed some figures. In 1848 he helped to organize the Deutsche Geologische Gesellschaft and was its secretary from 1849 to 1866. Following a stay in Naples (1855-1856), he published his monograph Der Vesuv und die Umgebung von Neapel (1857).
Roth combined his knowledge of chemistry and petrography to produce a collection of all available rock analyses - Die Gesteins-Analysen in tabellarischer Übersicht (1861) - and a critical evaluation of analytical methods and results. In this classification of rocks he tried to combine their chemical, mineralogical, and geological properties. In 1861 he obtained his Habilitation at the University of Berlin, and he illustrated his lectures there with the carefully collected specimens from his private collection.
Excursions to the volcanic provinces of Germany gave Roth an opportunity to apply his knowledge of recent volcanism to the fossil volcanoes of the Eifel. Following the death of Mitscherlich, his mentor at Berlin, Roth edited his manuscripts on volcanology. In 1867 Roth was appointed extraordinary professor at the University of Berlin.
Roth’s lifelong goal was to write an advanced textbook on general and chemical geology. His Beiträge zur Petrographie der plutonischen Gesteine (Berlin 1869, 1873, 1879, 1884) were milestones in this project; and with various research reports, especially his comprehensive study “Über die Lehre vom Meta-morphismus...,” he contributed original work on metamorphic rocks and the processes of metamorphism. In 1879 he published the first volume of his masterpiece, Allgemeine und chemische Geologie.
In 1887, when the last part of the second volume of his monumental handbook of petrography, Allgemeine und chemische Geologie, appeared, he was appointed full professor of petrography and general geology at Berlin. Only the first part of Roth’s third volume was published (1890) during his life.
Following his death, his daughter Elisabeth edited the second part, which Roth had prepared, and wrote supplements to previous volumes. Roth was representative of his time in that his publications were of three types: original papers on many topics, but primarily on petrography, his preferred subject; papers of a monographic or textbook nature; and popular books or articles.
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1905In 1867 Roth was made a full member of the Royal Prussian Academy of Sciences.
Doctor of Science