Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Remarks on the Abracadabra of the nineteenth century; or on Dr. Samuel Hahnemann's homoeopathic medicine, with particular reference to Dr. Constantine Hering's 'Concise view of the rise and progress of homoeopathic medicine', Philadelphia, 1833 / [William Leo-Wolf]. Public Domain Mark. Source: Wellcome Collection.