Fossil Echini of the Panama Canal Zone and Costa Rica
By: By Robert Tracy Jackson
Series: Smithsonian institution. United States National museum. Bulletin 103 [pt.5]; Bulletin (United States National Museum) -- 103, pt. 5
Publisher: Govt. print. off.
Published: 1918
Place of publication: Washington
Language: eng
Number of pages: 116
Subjects: Fossil Sea urchins; Paleontology
Notes: At head of title: Contributions to the geology and paleontology of the Canal Zone, Panama, and geologically related areas in Central America and the West Indies.

"Extract from Bulletin 103, pages 103-116, with plates 46-52."

Stamped on t.-p.: Issued Feb. 19, 1919.

"Essentially a reprint of my paper bearing the same title published in the Proceedings of the United States National museum, volume 53, pages 489-501 ... September 24, 1917."--Introd.