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[b. Glauchau, Saxony, March 24, 1494, d. Chemnitz, Saxony, November 21, 1555]
Although best known by the Latinized form of his name, Agricola was born Georg Bauer. Both Bauer and agricola mean "farmer," but Agricola was a physician who specialized in diseases of miners in the main mining centers of Saxony. His principal contribution to science is his posthumously published (1556) book De re metallica ("on metallic matters"), a clear, well-illustrated summary of what German miners had learned and how they operated. His earlier writings on minerals and geology are also valuable resources.
| Biography: Georgius Agricola |
The German mineralogist and writer on mining Georgius Agricola (1494-1555) is a major figure in the history of technology. His main contribution was his book on mining and metallurgy, "De re metallica."
Georgius Agricola, whose real name was Georg Bauer, was born at Glachau in Saxony on March 24, 1494. Virtually nothing is known of his family, his childhood, or his schooldays. At school his teachers Latinized his name to Georgius Agricola, a customary practice at the time.
Years of Study and Research
Agricola entered the University of Leipzig at the age of 20 and was awarded a degree in 1517. He began teaching Latin and Greek in the town school of Zwickau in 1518, and within a year he was made the principal. From 1522 to 1524 Agricola was a lecturer in the University of Leipzig. Then, in order to further his studies of the natural sciences, philosophy, and medicine, he spent 3 years studying in Italy at the universities of Bologna, Padua, and Venice.
By 1526 Agricola had returned to Germany, and a year later he took the job of physician in the little town of Joachimsthal, Bohemia. At that time Joachimsthal was in the center of one of the most productive metal mining regions in Central Europe, and Agricola was soon deeply involved in studying the closely related techniques of mining and metallurgy. After 3 years' residence in Joachimsthal, he finished his first book on mining, a hand-book on mineralogical and mining terms.
By now Agricola was fully committed to his research into mining and metallurgy. Around 1530 he left his medical post in Joachimsthal and toured German mines for 3 years. However, the lure of his native Saxony brought Agricola to Chemnitz in 1533, and he was appointed city physician. He lived and worked there for his remaining years. In 1543 he married a widow of Chemnitz, and they had at least five children.
Publications and Civic Activities
Five of Agricola's books were published in a one-volume edition in 1546 in Basel, comprising De ortu et causis subterraneorum, a pioneer study of physical geology; De natura eorum quae effluunt ex terra, dealing with subterranean waters and gases; De natura fossilium, the second in importance of Agricola's works, being the first proper study of mineralogy; De veteribus et novis metallis, dealing mostly with the history of metals; and Rerum metallicorum interpretatio, a dictionary of Latin and German mineralogical and metallurgical terms. In 1548 a curious little book, De animantibus subterraneis, appeared; it is a not very sound study of animals which live underground. He wrote more than two dozen works, many of which have survived, on mining, metallurgy, medicine, and religion.
In 1546 Agricola began to take an active interest in public affairs. He became a burgher of Chemnitz and served four terms as burgomaster. Although he was a staunch Catholic living under a Protestant monarchy, other political duties and civic responsibilities came his way and indicate the high esteem with which he was regarded. He died on Nov. 21, 1555.
"De re metallica"
Agricola's masterpiece, De re metallica, was the most important 16th-century book on any aspect of technology. He appears to have begun it about 1530, when he left Joachimsthal, and it took 20 years to complete. The printing was delayed until 1553, because of the time required to prepare the illustrations, and its publication in Basel in 1556 was a year too late for the approval of the author.
De re metallica consists of 12 books and covers every aspect of the industry. Hundreds of mining operations are described, and there are sections dealing with such related problems as surveying, geology, smelting, assaying, and administration. No less important and interesting than the text are the hundreds of delightful wood-cuts, which are technical drawings the like of which had not been printed before. Although they are not the only surviving illustrations of 16th-century engineering, they are the most realistic and reliable because they are based on actual practice rather than on speculation.
For 2 centuries De re metallica was the standard work in its field. Agricola had, for the first time in mining history, attempted to place the subject on an organized and scientific footing. More than a dozen editions appeared before 1700 in Latin, German, and Italian.
Further Reading
Agricola's De re metallica is his essential work. The fully documented translation by Herbert Clark Hoover and his wife, Lou Henry Hoover (1912), is recommended. There is a biography of Agricola in German but no full-length biography in English. Bern Dibner, Agricola on Metals (1958), is primarily an analysis of De re metalica but also provides some information on Agricola's life. Background material is in Frank Dawson Adams, The Birth and Development of the Geological Sciences (1938), and William B. Parsons, Engineers and Engineering in the Renaissance (1939), which contains a description of Agricola's techniques of mining and metallurgy.
| Columbia Encyclopedia: Georgius Agricola |
| Occultism & Parapsychology Encyclopedia: Georg Bauer |
German scholar and "father of mineralogy." He Latinized his surname (which means "boor" or "husbandman") to "Agricola" ("farmer"). Bauer was born March 24, 1494, at Glauchau, Saxony. An able and industrious man, he acquired considerable knowledge of the principles of medicine, which led him, as it led many of his contemporaries, to search for the elixir of life and the philosophers' stone. A treatise on these interesting subjects, which he published at Cologne in 1531, secured him the favor of Duke Maurice of Saxony, who appointed him superintendent of his silver mines at Chemnitz. In this post he obtained a practical acquaintance with the properties of metals, which dissipated his wild notions of their possible transmutation into gold; but if he abandoned one superstition he adopted another, and from the legends of the miners he imbibed a belief in the existence of good and evil spirits in the bowels of the earth, and in the creation of explosive gases and firedamp by the malicious agency of the latter.
Bauer's major work, De Re Metallica, completed in 1550 and published in 1556, has an illustration showing dowsers at work searching for minerals with a divining rod.
He died in Chemnitz on November 21, 1555.
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