Specification of James Robey
Subtitle: treating sewage
Publisher: Great Seal Patent Office
Published: 1874
Place of publication: London
Language: eng
Subjects: Sewage; Deodorization; Peat; Filters and filtration; Water Pollution; Prevention & control
Notes: Cover title.

At head of title: A.D. 1873, 25th July. No. 2534.

"James Robey, of Manchester, in the county of Lancaster, sugar refiner."