Published by Maryland Geological Survey, 1902, pp. 249-261., 1902
Seller: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. Condition: Good. ORIGINAL Reprint/offprint of journal article; softcovers; minor shelfwear w/ corners lightly bumped; small split in paper covering at head and tail of spine; o/w in good condition.