A man controlling the titration of bacteria in a vaccine with the aid of an optical apparatus. Photograph, [ca. 1940].
- Date:
- 1940
- Reference:
- 562251i
Licence: In copyright
Credit: A man controlling the titration of bacteria in a vaccine with the aid of an optical apparatus. Photograph, [ca. 1940]. Wellcome Collection. Source: Wellcome Collection.
