Specification of Robert Hawthorn and William Hawthorn
Subtitle: promoting combustion and prevention of smoke in coal-burning locomotives, &c
Contributors: Hawthorn, William
Publisher: Great Seal Patent Office
Published: 1859
Place of publication: London
Language: eng
Subjects: Smoke prevention; Locomotives; Steam-boilers; Coal
Notes: Cover title.

At head of title: A.D. 1859, 11th January. No. 86.