Author: MITCHELL (David Ray)

Description

MITCHELL (David Ray). Banded ingredients of no. 6 coal and their heating -values as related to washability charabteristlos, and Pteliminary reports on uniL coal—specific gravity curves of Illinois coals. By Ii. C. McCae, D. R. Mitchell, and G. H. Cady. Urbana, 1934. See ILLINOIS, State or. Department of Reista— tion a.ndEducation. Division of t,he Statz UeologcaI Survey. Report of Investiga— tions] 34

Card ID: 480