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Credit
Tiemann-Gartner's handbuch der Untersuchung und Beurtheilung der Wässer : Zum Gebrauch für Apotheker, Ärzte, Chemiker, Fabrikanten, Medicinalbeamte und Techniker / bearbeitet von G. Walter und A. Gartner. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.