Specification of Joseph Whitley : treating sewer gas.

  • Whitley, Joseph.
Date:
1875
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Joseph Whitley : treating sewer gas. Source: Wellcome Collection.

    8/12 (page 6)
    ■pa* ■ , - * ■ • . ' •> ' V; --a I ,1 I Iff Jnfl i' v;-y.n'v^ ’ImB , . ■ . . • ’ r • ?• ♦ . . .. ' ; . • - •,: •.. . ■ f oa.fK'' ci ■. >s<;l ■ . ■ . . . ■ . • ■ . ... ; •: . . » i ■ : ■v * y l. .