Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Die Physiologie der Hocksten Nerventatigkeit / Prof. I.P. Pavlov. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.