You can use this work for any purpose, including commercial uses, without restriction under copyright law. You should also provide attribution to the original work, source and licence.
Creative Commons Attribution (CC BY 4.0) terms and conditions https://creativecommons.org/licenses/by/4.0
Phrenology: the human and animal brain, the location of its functions according to the principles of phrenology, and personalia of phrenologists. Photographs, drawings and newsletters.
Credit: Wellcome Collection.