A man breathing in nitrous oxide (laughing gas) and a man exhibiting its exhilarating effects. Wood engraving, c. 1840.

Date:
[1840?]
Reference:
12028i

Licence: Public Domain Mark

Credit: A man breathing in nitrous oxide (laughing gas) and a man exhibiting its exhilarating effects. Wood engraving, c. 1840. Wellcome Collection. Source: Wellcome Collection.

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