Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Elementary lessons in logic : deductive and inductive : with copious questions and examples, and a vocabulary of logical terms / by W. Stanley Jevons. 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.