Specification of John Thomas Darke : treating sewage.

  • Darke, John Thomas.
Date:
1869
Catalogue details

Licence: Public Domain Mark

Credit: Specification of John Thomas Darke : treating sewage. Source: Wellcome Collection.

    6/6
    ' ' > L 1 ■ > ' ■ i ■ ' . . . _ ■ Sv * , - ■ - v: • ■ &ym