CONTENTS 



1. ScHUCHERT, Charles. A lower Cambrian Edrioasterid. May, 



1919. 8 pp., I pi. (Publ. no. 2534.) 



2. Explorations and field-work of the Smithsonian Institution in 



1918. July, 1919. 122 pp. (Publ. no. 2535.) 



3. JuDD, NeilM. Archeological investigations at Paragonah, Utah. 



July, 1919. 22 pp., 15 pis. (Publ. no. 2536.) 



4. Helland-Hansen, Bjorn, and Nansen, Fridtjof. Tempera- 



ture variations in the North Atlantic Ocean and in the atmos- 

 phere. April, 1920. 408 pp., 48 pis. (Publ. no. 2537.) 



(V) 



