TY  - BOOK
AU  - Parmelee, Cullen W.
AU  - Harman, Cameron Gerald, 1905-
CN  - TN677
CN  - TN677
CY  - Urbana, Ill.,
DA  - 1946.
ID  - 18227
KW  - Novaculite.
KW  - Gravel.
KW  - Refractory materials.
KW  - Geology
N1  - At head of title: State of Illinois...Dept. of registration and education...Division of the State geological survey...
PP  - Urbana, Ill.,
PY  - 1946.
T1  - Southern Illinois novaculite and novaculite gravel for making silica refractories,
TI  - Southern Illinois novaculite and novaculite gravel for making silica refractories,
VL  - 117
ER  -