M0016615: Illustration of Hewitt's apparatus for the administration of nitrous oxide, in use in 1893
- Date:
- 1958
- Reference:
- WT/D/1/20/1/149/64
Licence: In copyright
Credit: M0016615: Illustration of Hewitt's apparatus for the administration of nitrous oxide, in use in 1893. Source: Wellcome Collection.
