Specification of James Robey : charcoal for purifying sewage, &c.

  • Robey, James.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of James Robey : charcoal for purifying sewage, &c. Source: Wellcome Collection.

    1/10
    ■ fy• H.~ ■ / \- ^ „. i*«c*«P .v ,r ■ i * •''-: .?• ,'•: N° 230. Si: N OF ffiM; 3;*^ OBEY. EYING SEWAGE, *k; iONDON: AND WILLIAM SP0TT1SW00DE, THE QUEEN'S MOST EXCELLENT MAJESTY S ? a? wstJ?S? iir>i i'> • -■* ' - ■ . VT SEAL PATENT OFFICE, * *.*V * V.'1 buildings, holbobn.