Southern Illinois novaculite and novaculite gravel for making silica refractories
By: by C. W. Parmelee and C. G. Harman.
Contributors: Harman, Cameron Gerald, 1905- joint author.
Published: 1946
Place of publication: Urbana, Ill
Language: eng
Number of pages: 55
Subjects: Novaculite.; Gravel.; Refractory materials.; Geology -- Illinois.
Notes: Bibliographical foot-notes.
At head of title: State of Illinois...Dept. of registration and education...Division of the State geological survey...