Specification of George William Wigner
Subtitle: treating and purifying sewage
Publisher: Great Seal Patent Office
Published: 1870
Place of publication: London
Language: eng
Subjects: Sewage; Sewerage; Disinfection and disinfectants; Filters and filtration; Sewage disposal plants; Manures
Notes: Cover title.

At head of title: A.D. 1870, 8th February. No. 364.

"George William Wigner, of no.1, Saint Swithin's Lane, in the city of London, analytical chemist".