Specification of Thomas Stevens
Subtitle: treating sewage, &c
Publisher: Great Seal Patent Office
Published: 1876
Place of publication: London
Language: eng
Subjects: Water Pollution; Sewage; Sewage disposal; Prevention & control; Salt; Filters and filtration; Lime
Notes: Cover title.

At head of title: A.D. 1875, 11th August. No. 2829.

"Thomas Stevens... May Villa, Chirnside, in the county of Berwick, North Britain, civil engineer".