Specification of William Fern
Subtitle: decarbonizing smoke
Publisher: Great Seal Patent Office; George E. Eyre and William Spottiswoode)
Published: 1872
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces; Steam
Notes: Cover title.

At head of title: A.D. 1871, 18th December. No. 3424.

"William Fern, of Cullingworth, near Bingley, in the county of York, Wesleyan minister".