The weathering of coal.
Subtitle: Series of 1909
By: by S. W. Parr and W. F. Wheeler.
Contributors: Wheeler, Wilfrid Forrest, joint author.
Series: Bulletin no. 38 ... University of Illinois. Engineering experiment station
Publisher: The University
Published: 1909
Place of publication: Urbana, Ill
Language: eng
Number of pages: 43
Subjects: Coal-weathering.
Notes: Cover-title.
At head of title: University of Illinois bulletin. Vol. VI, no.44.