Mississippian Stratigraphy of Northwestern Pennsylvania
GEOLOGICAL SURVEY BULLETIN 1351-A Prepared in cooperation with the Pennsylvania Topographic and Geologic Survey r '
> 'I . t. I i 7 IT! i . * r * A »« ft - » '" * / 1 f V 4 1* / I 'i'- I 4 I Mississippian Stratigraphy of Northwestern Pennsylvania By GEORGE R. SCHINER and GRANT E. KIMMEL CONTRIBUTIONS TO GENERAL GEOLOGY
GEOLOGICAL SURVEY BULLETIN 1331-A Prepared in cooperation with the Pennsylvania Topographic and Geologic Survey
UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1972 UNITED STATES DEPARTMENT OF THE INTERIOR
ROGERS C B. MORTON, Secretary
GEOLOGICAL SURVEY
V, E. McKelvey, Director
Library of Congress catalog-card No. 72-600086
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