Louis Pasteur, proponent of the 'germ' theory of disease.
Wellcome Collection

Louis Pasteur, proponent of the 'germ' theory of disease.

http://data.europeana.eu/agent/147831 · 1862

CC0 — Public Domain
Wellcome Collection

Portrait of Louis Pasteur [1822 - 1895], French microbiologist and chemist

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