Specification of William Fern
Subtitle: apparatus for economizing fuel and consuming smoke
Publisher: Great Seal Patent Office; George E. Eyre and William Spottiswoode)
Published: 1873
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces
Notes: Cover title.

At head of title: A.D. 1872, 11th July. No. 2088.

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