Attribution 4.0 International (CC BY 4.0)
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. Read more about this licence.
Credit
A contribution to the pharmacognosy of official strophanthus seed : read before the British Pharmaceutical Conference in London, July 1900 / by Pierre Élie Félix Perrédès. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.