Specification of Donald Bethune
Subtitle: apparatus for preventing or consuming smoke in furnaces and chimneys
Publisher: Great Seal Patent Office; George E. Eyre and William Spottiswoode)
Published: 1857
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces; Chimneys
Notes: Cover title.

At head of title: A.D. 1857. No. 1601.

"Donald Bethune, of Cambridge Terrace, Hyde Park, London".