Additions to the flora of the Wilcox group.
Series: Shorter contributions to general geology -- 1922.; Professional paper. United States Geological Survey -- 131-A.; Professional paper (Geological Survey (U.S.)) -- 131-A.
Publisher: Govt. Print. Off.
Published: 1922
Place of publication: Washington
Language: eng
Number of pages: 21
Subjects: Paleobotany -- Eocene