Specification of David Gill : deodorizing sewer gas.
- Gill, David, 1958 May-
- Date:
- 1875
Licence: Public Domain Mark
Credit: Specification of David Gill : deodorizing sewer gas. Source: Wellcome Collection.
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Licence: Public Domain Mark
Credit: Specification of David Gill : deodorizing sewer gas. Source: Wellcome Collection.