Specification of Joseph Judge Hays : purifying and utilizing sewage.
- Hays, Joseph Judge.
- Date:
- 1871
Licence: Public Domain Mark
Credit: Specification of Joseph Judge Hays : purifying and utilizing sewage. Source: Wellcome Collection.
10/14 (page 8)
Licence: Public Domain Mark
Credit: Specification of Joseph Judge Hays : purifying and utilizing sewage. Source: Wellcome Collection.