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  1. Map of Joseph Wharton’s 1891 plan to create a series of reservoirs to supply Philadelphia drinking water. PDF of the report (from phillyh2o.org).
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    7 months ago
    1. martinjkelley posted this

  2. Map of Joseph Wharton’s 1891 plan to create a series of reservoirs to supply Philadelphia drinking water. PDF of the report (from phillyh2o.org).