BISCHOF, Gustav.

Die vulkanischen Mineralquellen Deutschlands und Frankreichs [with facing title]: Chemische Untersuchung der Mineralwasser zu Geilnau, Fachingen und Selters im Herzogthum Nassau, nebst allgemeinen Betrachtungen über vulkanische Mineralquellen, besonders über deren Ursprung, Mischung und Verhältniss zu den Gebirgsbildungen. Für Physiker, Chemiker, Geognosten und Aerzte, wie auch für unterrichtete Brunnen- und Bade- Reisende.

One engraved plate. xvi, 412 pp., [4] leaves. 8vo, cont. marbled boards (head of spine with smallchip), spine lettered in gilt. Bonn: E. Weber, 1826. First edition of an uncommon and important book. Bischof (1792-1870), professor of chemistry at the University of Bonn, was the first to investigate and emphasize the importance of water as a chemical agent in geological change. It was Bischof who created the new field of geochemistry. “His main interest at first was the volcanic phenomena of the Eifel and neighboring areas — specifically, the springs in these areas, which he interpreted as being largely of volcanic origin. In 1824 [sic] he published Die vulkanischen Mineralquellen Deutschlands und Frankreichs, a work which aroused much interest and led to his being considered one of the main defenders of volcanistic theories (as opposed to the neptunistic).”–D.S.B., II, p. 158. Very good copy. ❧ Zittel, p. 202.

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• ordernr.: HillBibl-1672

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