How to dispose of our refuse : a review of some of the principal systems proposed or adopted : being the contribution of Dr Syson (Medical Officer of Health for Salford) to the discussion on the above subject, at the Manchester and Salford Sanitary Association.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: How to dispose of our refuse : a review of some of the principal systems proposed or adopted : being the contribution of Dr Syson (Medical Officer of Health for Salford) to the discussion on the above subject, at the Manchester and Salford Sanitary Association. Source: Wellcome Collection.