The sewage question : comprising a series of reports being investigations into the condition of the principal sewage farms and sewage works of the kingdom / from Dr. Letheby's "Notes and chemical analyses".

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The sewage question : comprising a series of reports being investigations into the condition of the principal sewage farms and sewage works of the kingdom / from Dr. Letheby's "Notes and chemical analyses". Public Domain Mark. Source: Wellcome Collection.