Specification of William Cameron Sillar, Robert George Sillar and George William Wigner
Subtitle: deodorizing sewage for manure
Contributors: Sillar, Robert George; Wigner, George William
Publisher: Great Seal Patent Office
Published: 1868
Place of publication: London
Language: eng
Subjects: Sewage; Deodorization; Manures
Notes: Cover title.

At head of title: A.D. 1868, 15th June. No.1954.

"William Cameron Sillar, of 62, Cornhill, in the city of London, bullion banker, Robert George Sillar of no.3, Grange Road, Upper Norwood, gentleman and George William Wigner, of Grove Lane, Camberwell, chemist".