I. Smokeless briquets
Subtitle: impacted without binder from partially volatilized Illinois coals; progress report of a laboratory investigation. II. Smoke index: a qualitative measurement of smoke
By: by R.J. Piersol
Series: Illinois. State geological survey. Report of investigations -- no. 41
Publisher: Printed by authority of the State of Illinois
Published: 1936
Place of publication: Urbana, Ill
Language: eng
Number of pages: 113
Subjects: Coal; Briquets (Fuel); Smoke
Other titles: Smoke index.
Notes: At head of title: State of Illinois ... Department of registration and education.

Bibliography: p. 111-113.