Specification of Samuel Hallsworth and Richard Bailes
Subtitle: clarifying sewage, &c
Contributors: Bailes, Richard
Publisher: Great Seal Patent Office
Published: 1875
Place of publication: London
Language: eng
Subjects: Prevention & control; Water Pollution; Sewage
Notes: Cover title.

At head of title: A.D. 1875, 17th February. No. 573.

"Samuel Hallsworth, of Armley, and Richard Bailes, of Woodhouse Carr, both near Leeds, in the county of York".