TY  - BOOK
AU  - Watts,Arthur Simeon
AU  - Schurecht,Harry George
AU  - Swartz,Charles Kephart
AU  - Hall,George Martin
AU  - Mathews,Edward Bennett
TI  - The fire clays of Maryland,
T2  - Maryland.  Geological survey, 1896-      Special publications
AV  - TN942 .W27
PY  - 1922///
CY  - Baltimore
PB  - The Johns Hopkins press
KW  - Fire-clay
KW  - Clay
KW  - Maryland
N1  - Also published in Maryland.  Geological survey.  [Reort]  Vol. XI (1922) p. [289]-559
ER  -