A simple method of water analysis : especially designed for the use of medical officers of health / by John C. Thresh.

Licence: Public Domain Mark

Credit: A simple method of water analysis : especially designed for the use of medical officers of health / by John C. Thresh. 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.