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Sewage farming : I. The duty of a locality to utilise the nitrogenous matter in its sewage for the benefit of the nation. II. The power of soil and vegetation combined to destroy disease germs, and so prevent the possibility of the spread of enthetic disease in consequence of sewage farming : papers read at the International Congress of Hygiene and Demography, 1891, in the Chemical Section / by Alfred Carpenter. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.