London School of Tropical Medicine, 22nd Session.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: London School of Tropical Medicine, 22nd Session. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/M0019227/full/800%2C/0/default.jpg)
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: London School of Tropical Medicine, 22nd Session. Wellcome Collection. Source: Wellcome Collection.