EditorialMining for lead and silver in the Hartz mountains near Clausthal, Germany. Mine de Plomb-Argentifere des environs de Clausthal. Handcoloured steel engraving by du Casse after an illustration by Adolph Fries from Felix-Edouard Guerin-Meneville's Diction...
EditorialKOCH, Robert (Clausthal, near Hanover, 1843-Baden-Baden, 1910). German doctor. In 1882 discovered the bacillus of tuberculosis, known as Koch's bacillus and tuberculin. Nobel Prize in Medicine in 1905.
EditorialIron mines in the Hartz mountains near Clausthal, Germany, and hikers crossing rivers, mountains and glaciers. Handcoloured steel engraving by Pedretti after an illustration by A. Carie Baron from Felix-Edouard Guerin-Meneville's Dictionnaire Pittoresq...
EditorialMining for lead and silver in the Hartz mountains near Clausthal, Germany. Mine de Plomb-Argentifere des environs de Clausthal. Handcoloured steel engraving by du Casse after an illustration by Adolph Fries from Felix-Edouard Guerin-Meneville's Diction...
EditorialGears map of the district of Clausthal and Zellerfeld, Map of the shafts, passages and tunnels of the mines in the Clausthal-Zellerfeld region (Harz), pl. 1, after p. 240, 1846, Am?d?e Burat; Carl Hartmann: Theorie der Erzlagerst?tten, begr?ndet auf di...
EditorialKOCH, Robert (Clausthal, near Hanover, 1843-Baden-Baden, 1910). German doctor. In 1882 discovered the bacillus of tuberculosis, known as Koch's bacillus and tuberculin. Nobel Prize in Medicine in 1905.
EditorialKOCH, Robert (Clausthal, near Hanover, 1843-Baden-Baden, 1910). German doctor. In 1882 discovered the bacillus of tuberculosis, known as Koch's bacillus and tuberculin. Nobel Prize in Medicine in 1905.