Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Chemical report on the mode of detecting vegetable substances mixed with coffee for the purpose of adulteration / by Professor Graham, Dr. Stenhouse and Dugald Campbell. 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.