Specification of John Lloyd
Subtitle: utilizing and deodorizing sewage matters, &c
Publisher: Great Seal Patent Office
Published: 1857
Place of publication: London
Language: eng
Subjects: Sewage; Disinfection and disinfectants; Manures; Toilets; Ash (Combustion product)
Notes: Cover title.

At head of title: A.D. 1857. No. 1793.

"John Lloyd, of Llangefui, in the county of Anglesea, M.D."