Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Medical inquiries and observations : containing an account of the bilious and remitting and intermitting yellow fever,as it appeared in Philadelphia in the year 1794 ; together with an inquiry into the proximate cause of fever ; and a defence of blood-letting as a remedy for certain diseases / by Benjamin Rush, M.D. professor of the institutes, and of clinical medicine, in the University of Pennsylvania ; volume IV. Public Domain Mark. Source: Wellcome Collection.