Memorandum on the soil, contour & drainage of Hudson County, N.J : with additional notes relating to sewerage works / by L.B. Ward.

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Memorandum on the soil, contour & drainage of Hudson County, N.J : with additional notes relating to sewerage works / by L.B. Ward. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)