An inquiry into the comparative forces of the extensor and flexor muscles, connected with the joints of the human body / [Julius Jeffreys].

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

An inquiry into the comparative forces of the extensor and flexor muscles, connected with the joints of the human body / [Julius Jeffreys]. Public Domain Mark. Source: Wellcome Collection.